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#### Online Quiz (WorksheetABCD)

Questions Per Quiz = 2 4 6 8 10

### Grade 6 - Mathematics12.68 Multiplication - III

 Directions: Using the definitions given below, solve the problems given in the questions. A=3x+2y+7z B=3x+2y C=9x+3y+7z D=2x+7y+3z
 Q 1: 2(AB) = _______ ?18x2+8y2+24xy+42zx+28zy4x-20y-12z-12x-7y-31z-43xy-32zx-52zy Q 2: AB+BC = _______ ?-12x-7y-31z-43xy-32zx-52zy90x2+48y2+102xy+126zx+84yz45x2+24y2+51xy+63zx+42zy Q 3: 2(A+B+C+D) = ___ ?-12x-7y-31z-43xy-32zx-52zy34x+28y+34z12x2+28y2+21z2+50xy+32zx+61yz Q 4: AD+BD = _______ ?45x2+24y2+51xy+63zx+42zy12x2+28y2+21z2+50xy+32zx+61yz90x2+48y2+102xy+126zx+84yz Q 5: AB-BC = _______ ?90x2+48y2+102xy+126zx+84yz-9x2+12y2-3xy+21zx+14zy-12x-7y-31z-43xy-32zx-52zy Q 6: 2(A-B) = ______ ?-18x-3y-21z14z4x-20y-12z Q 7: D(B-C) = ______ ?-9x2+12y2-3xy+21zx+14zy-12x2-7y2-31z2-43xy-32zx-52zy-12x-7y-31z-43xy-32zx-52zy Q 8: 4(B-D) = ______ ?-9x2+12y2-3xy+21zx+14zy4x-20y-12z-12x-7y-31z-43xy-32zx-52zy Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!

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