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OpenStudy (anonymous):
Multiply (4x+9)(7x^2+3x+9)
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OpenStudy (anonymous):
I get 28x^3+75x^2+63x+81
OpenStudy (anonymous):
just wanted to make sure that this was the right answer.
myininaya (myininaya):
4x(7x^2+3x+9) + 9(7x^2+3x+9) = 28x^3+12x^2+36x + 63x^2+27x+81 = 28x^2+75x^2+63x+81
OpenStudy (anonymous):
so I was right?
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