In this page we have Extra questions for Algebraic Expressions and Identities Class 8 Maths Chapter 9 . Hope you like them and do not forget to like , social share
and comment at the end of the page.
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
Solution
(a) 77x
(b)-4xy
(c) -4p^{3}qr
(d) -12p^{6}
(e) 12mn^{2}
(f)51p^{11}
(g) 64pqr
(h) 4x^{5}y^{5}
(i) 6abc
(j)x^{2}y^{2}x^{2}
(k) 1024y^{6}
(l) 36a^{2}b^{2}c^{2}
(m) -p^{3}q^{2}r
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
Solution
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
Solution
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)
Download this assignment as pdf
link to this page by copying the following text
Also Read
- Notes
- Worksheets
- Ncert Solutions
Search Our Website
Class 8 Maths
Class 8 Science