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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: Divide [(3a)3 + (3b)3] by (3a+3b).
9a3-9ab+9b3
9a2-9ab+9b2
9a2+9ab+9b2

Q 2: (a+b)(c+d) = ac + ad + bc + bd, is this statement is true for any pair of real numbers?
False
True

Q 3: (7x-5)2 = _____?
35x2-30x+12
49x2+70x-25
49x2-70x+25
14x2-35x+10

Q 4: Find the value of 69*71 using formula.
4998
4989
4899

Q 5: Factorise 81x2 - 18x + 1.
(9x-1)(9x-1)
(9x+1)(9x+1)
(9x+1)(9x-1)

Q 6: (x-3)2 -64 = _____?
(x+5)(x+11)
(x+5)(x-11)
(x-5)(x-11)

Q 7: Factorise 16x2 - 24x + 9.
(4x+3)(4x+3)
(4x+3)(4x-3)
(4x-3)(4x-3)

Q 8: Factorise 9x2 + 24x + 16.
(3x-4)(3x+4)
(3x+4)(3x+4)
(3x-4)(3x-4)

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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