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

 Q 1: If a+b+c = 6 and a2+b2+c2 = 20, find the value of ab+bc+ca.2486 Q 2: Divide (x2+7x+2) by (x+3).Quotient=(x-4) and Remainder=2Quotient=(x+4) and Remainder=0Quotient=(x-4) and Remainder=0Quotient=(x+4) and Remainder=2 Q 3: Find the product of (2x+2y+2z) (4x2+4y2+4z2-4xy-4yz-4xz).8x3+8y3+z3-24xyz8x3+8y3+z3-12xyzNone of these8x3+8y3-z3-24xyz Q 4: (7x+1)(6y-3) = _____?42x-21x+6y-342xy-21x-342xy-21xy+6y-342xy-21x+6y-3 Q 5: Find the product of (x+3)(x+3).None of thesex2+6x+9x2+3x+9x2-6x+9 Q 6: Divide [(5a)3-(6b)3] by (5a-6b).25a2+30ab+36b225a2-30ab+36b225a3+30ab+36b325a3+30ab+36b2 Q 7: (6x2+7x-7)(-5x) = _____?-30x3-35x2+35x-30x3+35x2+35xNone of these30x3-35x2+35x Q 8: If (x+1/x) = 9 find x2+1/x2.69798975 Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!