Factorisation - Solutions 2
CBSE Class –VIII Mathematics
NCERT Solutions
CHAPTER - 14
Factorisation (Ex. 14.2)
NCERT Solutions
CHAPTER - 14
Factorisation (Ex. 14.2)
1. Factorize the following expressions:
(i)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image001.png)
(ii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image002.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image002.png)
(iii)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image003.png)
(iv) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image004.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image004.png)
(v)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image005.png)
(vi) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image006.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image006.png)
(vii)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image007.png)
[Hint: Expand
first]
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image008.png)
(viii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image009.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image009.png)
Ans. (i) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image010.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image010.png)
Using identity
,
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image011.png)
Here
and ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image013.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image012.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image013.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image001.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image014.png)
(ii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image015.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image015.png)
Using identity
,
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image011.png)
Here
and ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image017.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image016.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image017.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image018.png)
(iii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image019.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image019.png)
Using identity
, here ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image021.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image020.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image021.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image022.png)
(iv) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image004.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image023.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image004.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image023.png)
Using identity
, here ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image024.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image020.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image024.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image025.png)
(v) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image026.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image026.png)
Using identity
, here ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image028.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image027.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image028.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image029.png)
(vi) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image006.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image030.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image006.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image030.png)
Using identity
, here ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image031.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image027.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image031.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image032.png)
(vii)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image007.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image034.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image033.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image034.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image035.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image035.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image036.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image036.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image038.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image037.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image038.png)
(viii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image039.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image039.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image034.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image040.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image034.png)
2. Factorize:
(i)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image041.png)
(ii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image042.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image042.png)
(iii)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image043.png)
(iv) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image044.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image044.png)
(v)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image045.png)
(vi) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image046.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image046.png)
(vii)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image047.png)
(viii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image048.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image048.png)
Ans. (i) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image049.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image049.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image051.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image050.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image051.png)
(ii)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image052.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image053.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image051.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image054.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image051.png)
(iii)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image055.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image043.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image055.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image051.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image056.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image051.png)
(iv) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image057.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image057.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image058.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image058.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image051.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image059.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image051.png)
(v)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image060.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image061.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image051.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image062.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image062.png)
= (2l) (2m) = 4lm
(vi) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image064.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image064.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image051.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image065.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image051.png)
(vii)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image038.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image066.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image038.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image051.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image067.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image051.png)
(viii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image048.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image048.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image068.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image069.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image069.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image038.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image070.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image038.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image071.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image071.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image051.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image072.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image051.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image073.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image073.png)
3. Factorize the expressions:
(i)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image074.png)
(ii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image075.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image075.png)
(iii)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image076.png)
(iv) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image077.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image077.png)
(v)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image078.png)
(vi) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image079.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image079.png)
(vii)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image080.png)
(viii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image081.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image081.png)
(ix) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image082.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image082.png)
Ans. (i)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image084.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image083.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image084.png)
(ii)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image085.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image075.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image085.png)
(iii)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image086.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image076.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image086.png)
(iv)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image077.png)
=![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image087.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image087.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image088.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image088.png)
(v)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image089.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image078.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image089.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image090.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image090.png)
(vi)
=![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image091.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image079.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image091.png)
(vii)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image080.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image092.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image092.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image093.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image093.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image094.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image094.png)
(viii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image081.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image081.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image095.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image095.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image096.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image096.png)
(ix)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image082.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image097.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image097.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image098.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image098.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image099.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image099.png)
4. Factorize:
(i)
(ii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image101.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image100.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image101.png)
(iii)
(iv) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image103.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image102.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image103.png)
(v) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image104.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image104.png)
Ans. (i) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image105.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image105.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image106.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image108.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
(ii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image109.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image109.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image110.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image111.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image111.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image112.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
(iii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image113.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image113.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image114.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image115.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
= (x - y - z) (x + y + z) [x2 + (y + z)2]
(iv) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image117.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image117.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image118.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
= [x - (x - z)][x + (x - z)] [x2 + (x - z)2] ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
= [x - x + z] [x + x - z] [x2 + x2 - 2xz + z2] ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image121.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image121.png)
= z (2x - z) (2x2 - 2xz + z2)
(v)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image123.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image104.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image123.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image121.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image124.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image121.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image125.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image107.png)
=
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image127.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image126.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image127.png)
5. Factorize the following expressions:
(i)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image128.png)
(ii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image129.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image129.png)
(iii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image130.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image130.png)
Ans.
(i) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image131.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image131.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image132.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image132.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image133.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image133.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image134.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image134.png)
(ii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image135.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image135.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image136.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image136.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image137.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image137.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image138.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image138.png)
(iii) ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image139.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image139.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image140.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image140.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image141.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image141.png)
= ![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image142.png)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/08/maths/14_2/image142.png)