Algebraic Expressions and Identities Extra questions

In this page we have Extra questions for Algebraic Expressions and Identities Class 8 Maths Chapter 8 . Hope you like them and do not forget to like , social share
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Question 1
Find the product of the following expression
(a) 11, 7x
(b) - 4x, y
(c) - 4p, pq, pr
(d)4p^{3}, - 3p, p^{2}
(e) 3mn, 4n
(f) 51p, p^{2}, p^{8}
(g) 2p, 4q, 8r
(h) xy, 2x^{2}y, 2xy^{2}, xy
(i) a, 2b, 3c
(j) xy, yz, zx
(k) 2, 4y, 8y^{2},16y^{3}
(l) a, 2b, 3c, 6abc
(m) p, - pq, pqr

Question 2
Volume of the cuboid with Length as 2x,breath as 2y and Height as 2 z is given by
(a) xyz
(b) 8xyz
(c) 2x+2y+2z
(d) None of these

Answer

Volume of the cuboid= L*B*H= (2x)(2y)(2z)=8xyz
So Answer is (b)

Question 3
The sum of area of the squares of side 2a and 2b will be
(a) 2a+ 2b
(b) 4a^{2} + 4b^{2}
(c) ab
(d) None of these

Answer

Area of Square= (Side)^{2}
So The sum of area of the squares of side 2a and 2b=4a^{2} + 4b^{2}
So Answer is (b)

Summary

This Extra questions for Algebraic Expressions and Identities Class 8 Maths is prepared keeping in mind the latest syllabus of CBSE . This has been designed in a way to improve the academic performance of the students. If you find mistakes , please do provide the feedback on the mail.