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### Grade 6 - Mathematics12.62 Multiplication of a Monomial and a Trinomial - I

 Example: 5x(3x+7y+9z) = _____ ? Solution: 5x.3x + 5x.7y + 5x.9z = (5.3).(x.x) + (5.7).(x.y) + (5.9).(x.z) =15x1+1+35xy +45xz =15x2+35xy+45xz Directions: Solve the following multiplication problems. Also write at least 10 examples of your own.
 Q 1: 7x(9x2y+7xy+7xyz) = _____ ?63x2y+49x2y+63x63x3y+49x2y+49x2yz63x3y+49xy+49x2yz48x2+56xy+72x2yz Q 2: 7x(9xy+7xz+9x) = _____ ?48x2+56xy+72x2yz63x3y+49x2z+63x63x2y+49x2z+63x263x2y+49x3z+63x2 Q 3: 9x(7xy+10y+9xz) = _____ ?63x3y+90xy+81x2z48x2+56xy+72x2yz63x2y+90xy+81x2z63x2y+49x2y+63x Q 4: 6x(7x+9y+3xyz) = _____ ?42x2+54xy+18x2yz63x2y+49x2y+63x42x3+54xy+18x2y48x2+56xy+72x2yz Q 5: 5x(9x+7y+7z) = _____ ?63x2y+49x2y+63x45x2+35xy+57xz45x2+35xy+35xz45x3+35xy+35xz Q 6: 10x(9x+7xy+9z) = _____ ?90x2+70x2y+90xz63x2y+49x2y+63x48x2+56xy+72x2yz90x2+70xy+90x2z Q 7: 6x(7x+9xy+7yz) = _____ ?48x2+56xy+72x2yz42x2+54xy+42x2yz63x2y+49x2y+63x42x2+54x2y+42xyz Q 8: 7x(9xy+7yz+7xz) = _____ ?63x2y+49x2y+63x63x2y+49xyz+49x2z63x2y+77xyz+49x263x2y+49xyz+49x4z Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!