### Factorisation - Solutions 4

CBSE Class –VIII Mathematics
NCERT Solutions
CHAPTER - 14
Factorisation (Ex. 14.4)

Find and correct the errors in the following mathematical statements:
1.
Ans. L.H.S. = R.H.S.
Hence the correct mathematical statement is

2
Ans. L.H.S. = R.H.S.
Hence the correct mathematical statement is

3.
Ans. L.H.S. = R.H.S.
Hence the correct mathematical statement is

4
Ans. L.H.S. = R.H.S.
Hence the correct mathematical statement is

5
Ans. L.H.S. = R.H.S.
Hence the correct mathematical statement is

6
Ans. L.H.S. = R.H.S.
Hence the correct mathematical statement is

7
Ans. L.H.S. = R.H.S.
Hence the correct mathematical statement is

8
Ans. L.H.S. = R.H.S.
Hence the correct mathematical statement is

9
Ans.
L.H.S. = .
Hence the correct mathematical statementsis

10. Substituting  in:
(a) gives
(b) gives
(c) gives
Ans. (a) L.H.S. =
Putting  in given expression,
= R.H.S.
Hence  gives
(b) L.H.S. =
Putting  in given expression,
= R.H.S.
Hence  gives
(c) L.H.S. =
Putting  in given expression,
= R.H.S.
Hence  gives

11
Ans. L.H.S. =
R.H.S.
Hence the correct statement is

12
Ans. L.H.S. =

Hence the correct statement is

13
Ans. L.H.S. =

R.H.S.
Hence the correct statement is

14. (a + 4) (a + 2) = a2 + 8
Ans. L.H.S. =
R.H.S.
Hence the correct statement is

15
Ans. L.H.S. =
= R.H.S.
Hence the correct statement is

16
Ans. L.H.S. = R.H.S.
Hence the correct statement is

17
Ans. L.H.S. =
R.H.S.
Hence the correct statement is .

18
Ans. L.H.S. = R.H.S.
Hence the correct statement is

19
Ans. L.H.S. = R.H.S.
Hence the correct statement is

20
Ans. L.H.S. = R.H.S.
Hence the correct statement is

21
Ans. L.H.S. = R.H.S.
Hence the correct statement is