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### MEAP Preparation - Grade 7 Mathematics2.83 Multiplication of a Monomial and a Trinomial - III

 Example: 9x3(7x2+9y+7z) = _____ ? Solution: (9x3.7x2)+(9x3.9y)+(9x3.7z) = (9.7).(x3.x2)+(9.9).(x3.y)+(9.7).(x3.z) = 63x5+81x3y+63x3z Directions: Solve the following multiplication problems. Also write at least 10 examples of your own.
 Q 1: 7x3(9x2+7y2+9z2) = ______ ?63x5+49x3y2+63x3z263x5+49x3y2+63x3y263x5+49x3y2+63x3z363x5+49x3y2+63x3z Q 2: 4x3(3x2+6xy2+7z) = ______ ?12x5+16x4y2+28x3z12x5+16x4y2+30x3z Q 3: 3x3(4x2+6y+7z) = ______ ?12x5+18xy+21x3z12x5+18x3y+21x3z12x5+18x3z+21x3y12x5+18y3z+21x3z Q 4: 5x3(9x2+6y+3z2) = ______ ?45x5+30x3y+15x3z345x5+30x3y+15x3z45x5+20x3y+15x3z245x5+30x3y+15x3z2 Q 5: 2x3(4x2+6xy+9z) = ______ ?8x5+12x4y+18x3z8x5+12x4y+12x3z8x5+21x4y+18x3z8x5+12x4y+28x3z Q 6: 9x3(7x2+2xy+9z) = ______ ?63x5+18x4y+80x3z63x5+28x4y+81x3z63x5+18x4y+82x3z63x5+18x4y+81x3z Q 7: 4x3(9x2+6y+3z2) = ______ ?36x5+24x3y+12x3y236x5+24x3y+12x3z36x5+24x3y+12x3z236x5+24x3y+12x2z2 Q 8: 7x3(9x2+7y+6z) = _______ ?63x5+52x3y+42x3z63x5+49x3y+63x3z63x5+49x3y+42x3z63x5+49x3y+42x4z Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!