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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 8 - Mathematics
7.51 Polynomials Review Test

Q 1: Expand 27x3+8y3.
(3x+2y)(9x2-6xy+4y2)
(3x+2y)(9x2-6xy+2y2)
None of these
(3x+2y)(9x2+6xy+4y2)

Q 2: If x-y = 3 and xy = 18, find the value of x2+y2.
43
45
47
49

Q 3: (2x2-5).(7x+1) = _____?
14x3-2x2-35x-5
14x3+2x2-35x+5
14x3+2x2-35x-5
14x3+2x2+35x-5

Q 4: Divide [(5a)3-(6b)3] by (5a-6b).
25a2-30ab+36b2
25a3+30ab+36b3
25a2+30ab+36b2
25a3+30ab+36b2

Q 5: If a-b = 6 and ab = 91, find the value of a3-b3.
1874
1844
1854
1864

Q 6: Divided (3x2 + 6x) by 3x.
x - 2
x2 + 2
x + 3
x + 2

Q 7: Expand (5x+2y)2.
25x2+20xy+4y2
None of these
25x2-20xy+4y2
25x2+20xy+2y2

Q 8: Expand (x-2y)3.
x3-6x2y+12xy2+8y3
None of these
x3-6x2y+6xy2-8y3
x3-6x2y+12xy2-8y3

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Question 10: This question is available to subscribers only!


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