Question 1: Performing the calculation \(x(9-4 x)(x+2) \) we get:

12/01/2022 // by admin// Leave a Comment

Question 1: Performing the calculation \(x(9-4 x)(x+2) \) we get:

A. \(-4 x^{3}+x^{2}+18 x+1\)

B. \(-2 x^{3}+x^{2}+18 x\)

C. \(-4 x^{3}+x^{2}+18 x-3\)

D. \(-4 x^{3}+x^{2}+18 x\)

\(\begin{aligned} x(9-4 x)(x+2) &=\left(9 x-4 x^{2}\right)(x+2)=9 x^{2}+18 x-4 x^{3}-8 x^{2} \\ &=-4 x^{3}+x^{2}+18 x \\ \end{aligned} \)

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