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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: Divide [(3a)3 + (3b)3] by (3a+3b).
None of these
9a2-9ab-9b2
9a2+9ab+9b2
9a2-9ab+9b2

Q 2: If a+b = 8 and ab = 15, find the value of a3+b3.
152
153
159
157

Q 3: Find the value of (58)2 using formula.
3374
3354
3364
3384

Q 4: If a+b+c = 6 and a2+b2+c2 = 20, find the value of ab+bc+ca.
6
4
2
8

Q 5: If x - 1/x = 3, find the value of x2+1/x2 and x4+1/x4.
113
117
119
115

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

Q 7: (6a-7b)(6a+7b) = _____?
(6a)2+(7b)2
None of these
(6a)2-(7b)2

Q 8: If x + 1/x = 5, find the value of x2+1/x2 and x4+1/x4.
537
527
547
567

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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