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### Grade 7 - Mathematics4.51 Special Products and Expansions Review Test

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### Grade 7 - Mathematics4.51 Special Products and Expansions Review Test

 Q 1: (7x+1)(6y-3) = _____?42xy-21x-6y-342xy-21x+6y-342xy+21x+6y-3 Q 2: Factorise 9a(7x-6) - 8b(7x-6).(9a-8b)(7x-6)(9a-8b)(7x+6)(4a-6b)(3x+5)(3a-8b)(x+6) Q 3: (x+9)2 = _____?x2+18x+81x2+18x+18x2+81x+81 Q 4: (20x+5) (6y+9) = _____?120xy+170x+30y+45120xy+160x+30y+45120xy+180x+30y+45 Q 5: Find the value of 10.01*9.99 using formula.99.99999.9999.9999 Q 6: Divide 6a4 by 2a2.3a24a23a36a2 Q 7: Divide (9a4-6a3+18a2-2a-5) by (3a2-2a+2).Quotient=(3a2+4) and Remainder=(6a-13)Quotient=(3a2+4) and Remainder=(6a+13)Quotient=(3a2-4) and Remainder=(6a-13) Q 8: (x+5).(x+2) = _____?2x2+7x+10x2+7x-10x2+7x+10 Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!