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

Q 2: If x+1/x = 4, find the value of x3+1/x3.
56
58
52
54

Q 3: (x-1)2 = _____?
x2+2x+1
x2-2x-1
None of these
x2-2x+1

Q 4: (x+1)2 = _____?
x2+2x+1
x2-2x+1
x2+2xy+1
x2+2x-1

Q 5: Divide 6a4 by 2a2.
3a
3a2
None of these
3a3

Q 6: (6x2+7x-7)(-5x) = _____?
30x3-35x2+35x
-30x3+35x2+35x
None of these
-30x3-35x2+35x

Q 7: (7x+1)(6y-3) = _____?
42xy-21x+6y-3
42xy-21x-3
42x-21x+6y-3
42xy-21xy+6y-3

Q 8: (2x2-5).(7x+1) = _____?
14x3+2x2+35x-5
14x3+2x2-35x+5
14x3-2x2-35x-5
14x3+2x2-35x-5

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Question 10: This question is available to subscribers only!


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