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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: 2AB+2BC = _____ ?45x2+24y2+51xy+63zx+42zy-12x-7y-31z-43xy-32zx-52zy90x2+48y2+102xy+126zx+84yz Q 2: 3(B-C) = ______ ?-18x-3y-21z4x-20y-12z-12x-7y-31z-43xy-32zx-52zy Q 3: D(B-C) = ______ ?-12x-7y-31z-43xy-32zx-52zy-9x2+12y2-3xy+21zx+14zy-12x2-7y2-31z2-43xy-32zx-52zy Q 4: 2(A+B+C+D) = ___ ?12x2+28y2+21z2+50xy+32zx+61yz34x+28y+34z-12x-7y-31z-43xy-32zx-52zy Q 5: AD+BD = _______ ?90x2+48y2+102xy+126zx+84yz45x2+24y2+51xy+63zx+42zy12x2+28y2+21z2+50xy+32zx+61yz Q 6: 4(B-D) = ______ ?-12x-7y-31z-43xy-32zx-52zy4x-20y-12z-9x2+12y2-3xy+21zx+14zy Q 7: AB+BC = _______ ?90x2+48y2+102xy+126zx+84yz45x2+24y2+51xy+63zx+42zy-12x-7y-31z-43xy-32zx-52zy Q 8: 2(A-B) = ______ ?-18x-3y-21z14z4x-20y-12z Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!