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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 7 - Mathematics
4.51 Special Products and Expansions Review Test

Q 1: Factorise 9x2 - 54x + 81.
(3x-9)(3x-9)
(3x+9)(3x+9)
(3x+9)(3x-9)

Q 2: (6a-7b)(6a+7b) = _____?
6a2-7b2
(12a)2-(6b)2
(a)2+(7b)2
(6a)2-(7b)2

Q 3: Express 21a+18b as product of factors.
3(7a+6b)
7(3a+6b)
6(7a+3b)

Q 4: Find the HCF of 12a2, 4ac and 6c2.
None of these
2
2ac
2a2b

Q 5: (9x-9)(8x+7) = 72x2-9x____.
Answer:

Q 6: Factorise 19x(6a-7b) - 4y(6a-7b).
(19x-4y)(6a-7b)
(19x+4y)(a-7b)
(10x+2y)(5a-2b)
(19x+4y)(6a-7b)

Q 7: Factorise (3x-2y)(3a+b) - (4x-3y)(3a+b).
(-x+y)(3a+b)
(x-y)(3a+b)
(x+y)(3a+b)

Q 8: Find the square root of 729x8y10z2.
27x4y5z
27x3y8z
23x4y5z

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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