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### MEAP Preparation - Grade 7 Mathematics2.87 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

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### MEAP Preparation - Grade 7 Mathematics2.87 Multiplication - III

 Q 1: 2(A-B) = ______ ?4x-20y-12z-18x-3y-21z14z Q 2: 3(B-C) = ______ ?-12x-7y-31z-43xy-32zx-52zy-18x-3y-21z4x-20y-12z Q 3: 2(AB) = _______ ?4x-20y-12z-12x-7y-31z-43xy-32zx-52zy18x2+8y2+24xy+42zx+28zy Q 4: 4(B-D) = ______ ?-9x2+12y2-3xy+21zx+14zy4x-20y-12z-12x-7y-31z-43xy-32zx-52zy Q 5: D(B-C) = ______ ?-12x-7y-31z-43xy-32zx-52zy-9x2+12y2-3xy+21zx+14zy-12x2-7y2-31z2-43xy-32zx-52zy Q 6: AB-BC = _______ ?-12x-7y-31z-43xy-32zx-52zy-9x2+12y2-3xy+21zx+14zy90x2+48y2+102xy+126zx+84yz Q 7: 2AB+2BC = _____ ?-12x-7y-31z-43xy-32zx-52zy90x2+48y2+102xy+126zx+84yz45x2+24y2+51xy+63zx+42zy Q 8: AB+BC = _______ ?90x2+48y2+102xy+126zx+84yz-12x-7y-31z-43xy-32zx-52zy45x2+24y2+51xy+63zx+42zy Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!

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