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### Grade 8 - Mathematics7.51 Polynomials Review Test

 Q 1: Find the value of (31)2 using formula.941961971951 Q 2: If x-1/x = 10, find the value of x3-1/x3.1040103010501060 Q 3: If x+1/x = 4, find the value of x3+1/x3.54565258 Q 4: Find the product of (x-3)(x-5)(x+7).None of thesex3-x2-41x+105x3-x2-41x+105x3-x2-41x+105 Q 5: Divide (x2+7x+2) by (x+3).Quotient=(x-4) and Remainder=0Quotient=(x+4) and Remainder=2Quotient=(x+4) and Remainder=0Quotient=(x-4) and Remainder=2 Q 6: Find the product (7x+2y)(7x-2y).49x2+4y2None of these49x2-4y249x2-2y2 Q 7: (6x2+7x-5)(5x) = _____? 30x3+30x2-25x30x3+35x2-25x30x3-35x2-25x30x3+35x-25x Q 8: Find the product of (2x+2y+2z) (4x2+4y2+4z2-4xy-4yz-4xz).None of these8x3+8y3+z3-24xyz8x3+8y3-z3-24xyz8x3+8y3+z3-12xyz Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!