### Algebraic Expressions and Identities - Solutions 2

CBSE Class –VIII Mathematics
NCERT Solutions
CHAPTER - 9
Algebraic Expressions and Identities (Ex. 9.2)

1. Find the product of the following pairs of monomials:
(i)
(ii)
(iii)
(iv)
(iv)
Ans.
(i)    =  =
(ii)  =
(iii)  =
(iv)  =
(v)  =  = 0

2. Find the areas of rectangles with the following pairs of monomials as their lengths and breadths respectively:
Ans.
(i)   Area of rectangle
sq. units
(ii) Area of rectangle

sq. units
(iii) Area of rectangle  =

sq. units
(iv) Area of rectangle  =

sq. units
(v) Area of rectangle  =

sq. units

3. Complete the table of products:
(i)

Ans.
(i)

4. Obtain the volume of rectangular boxes with the following length, breadth and height respectively:
(i)
(ii)
(iii)
(iv)
Ans. (i)   Volume of rectangular box
cubic units
(ii) Volume of rectangular box
=  cubic units
(iii) Volume of rectangular box
=  cubic units
(iv) Volume of rectangular box
=
cubic units

5. Obtain the product of:
(i)
(ii)
(iii)
(iv)
(v)
Ans.
(i)
(ii)  =
(iii)
=
(iv)
=
(v) =(-1)(mxmxmxnxnxp)