NCERT Solutions For Class 8 Maths Chapter 9 Algebraic Expressions and Identities Ex 9.2

Here, Below you all know about NCERT Solutions for Class 8 Maths Chapter 9 Algebraic Expressions and Identities Ex 9.2 Question Answer. I know many of you confuse about finding this Chapter 9 Algebraic Expressions and Identities Ex 9.2 Of Class 8 NCERT Solutions. So, Read the full post below and get your solutions.

Textbook	NCERT
Board	CBSE
Category	NCERT Solutions
Class	Class 8
Subject	Maths
Chapter	Chapter 9
Exercise	Class 8 Chapter 9 Algebraic Expressions and Identities Exercise 9.2
Number of Questions Solved	5

NCERT Solutions for Class 8 Maths Chapter 9 Algebraic Expressions and Identities Ex 9.2

NCERT TEXTBOOK EXERCISES

Question 1. Find the product of the following pairs of monomials:

(i) 4, 7p
(ii) – 4p, 7p
(iii) – 4p, 7pq
(iv) 4p³, −3p
(v) 4p, 0.

Solution.

Question 2. Find the areas of rectangles with the following pairs of mononials as their lengths and breadths respectively:

(i) (p, q);
(ii) (10m, 5n);
(iii) (20x², 5y²);
(iv) (4x, 3x²);
(v) (3mn, 4np).

Solution.

(i) (p, q)
Length = p
Breadth = q
∴ Area of the rectangle
= Length x Breadth
= pxq
= pq

(ii) (10m, 5n)
Length = 10 m
Breadth = 5 n
∴ Area of the rectangle
= Length x Breadth
= (10m) x (5n)
= (10 x 5) x (m x n)
= 50 x (mn)
= 50 mn

(iii) (20x², 5y²)
Length = 20x²
Breadth = 5y²
∴ Area of the rectangle
= Length x Breadth
= (20x²) x (5y²)
= (20 x 5) x (x²×y2)
= 100 x (x²y²)
= 100x²y²

(iv) (4x, 3xP)
Length = 4.x
Breadth = 3x²
∴ Area of the rectangle
= Length x Breadth =
(4x) x (3x²)
= (4 x 3) x (x×x²)
= 12 x x³
= 12×3

(v) (3mn, 4np)
Length = 3 mn
Breadth = 4np
∴ Area of the rectangle
= Length x Breadth
= (3mn) x (4np)
= (3 x 4) x (mn) x (np)
= 12 x m x (n x n) x p
= 12mn²p

Question 3. Complete the table of products.

Solution.

Question 4. Obtain the volume of rectangular boxes with the following length, breadth and height respectively:

(i) 5a, 3a², 7a⁴
(ii) 2p, 4q, 8r
(iii) xy, 2x²y, 2xy²
(iv) a, 2b, 3c

Solution.

(i) 5a,3a²,7a⁴

(ii) 2p, 4q, 8r

(iii) xy,2x²y,2xy²

(iv) a, 2b, 3c

Question 5. Obtain the product of

(i) xy, yz, zx
(ii) a, −a², a³
(iii) 2, 4y, 8y², 16y³
(iv) a, 2b, 3c, 6abc
(v) m, – mn, mnp.

Solution.

(i) xy, yz, zx
Required product
= (xy) x (yz) x (zx)

(ii) a, −a², a³

(iii) 2,4y,8y²,16y³

(iv) a, 2b, 3c, 6abc

(v) m, – mn, mnp.

NCERT Solutions for Class 8 Maths Chapter 9 Algebraic Expressions and Identities Exercise 9.2 PDF

For NCERT Solutions for Class 8 Maths Chapter 9 Algebraic Expressions and Identities Ex 9.2, you may click on the link below and get your NCERT Solutions for Class 8 Maths Chapter 9 Algebraic Expressions and Identities Exercise pdf file.

CLICK HERE

Finally, You all know about NCERT Solutions for Class 8 Maths Chapter 9 Algebraic Expressions and Identities Ex 9.2. If you have any questions, then comment below and share this post with others.

Class 8 Maths Chapter 9 Algebraic Expressions and Identities

• Class 8 Maths Chapter 9 Algebraic Expressions and Identities Ex 9.1
• Class 8 Maths Chapter 9 Algebraic Expressions and Identities Ex 9.2
• Class 8 Maths Chapter 9 Algebraic Expressions and Identities Ex 9.3
• Class 8 Maths Chapter 9 Algebraic Expressions and Identities Ex 9.4
• Class 8 Maths Chapter 9 Algebraic Expressions and Identities Ex 9.5