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Grade 7 - Mathematics
4.51 Special Products and Expansions Review Test

Q 1: Factorise 9a(7x-6) - 8b(7x-6).
(9a-8b)(7x-6)
(4a-6b)(3x+5)
(9a-8b)(7x+6)
(3a-8b)(x+6)

Q 2: (5x+3)2 = _____?
25x2+30x+15
25x2+25x+9
25x2+30x+9

Q 3: Multiply (4x+3) with (2x-3).
8x2-6x-9
8x2-6x+9
8x2+6x-9

Q 4: Divide (-27a2b) by 3ab.
-5a
-9a
9a
-9a2

Q 5: Find the value of (79)2 using formula.
6084
6241
3364

Q 6: (x2+9).(5x+4) = _____?
5x3+4x245x-36
5x3-4x245x+36
5x3+4x245x+36

Q 7: Find the value of (26)2 using formula.
676
678
674

Q 8: (2x+3)(3y-2) = 6xy - 4x + 9y - 6, is this statement is true for any pair of real numbers?
False
True

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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