Answer to Question #243131 in Algebra for enKay

Question #243131

B) find the coefficient of x^3 in the expansion (2x^3-5x^3+2x-1)(3x^3+2x^2-9x+7)

Expert's answer

Coefficient of x^3: "2*7+(-5)*(-9)+2*2+(-1)*3=60."

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