Answer
$ x^2(32x-9)$
Work Step by Step
We factor out $x^3$ and distribute, combine like terms, and simplify as follows:
\begin{align*}
3x^2(8x - 3) + x^3 \cdot 8&= x^2[3(8x-3)+8x]\\
&= x^2[24x-9+8x]\\
&= x^2(32x-9).
\end{align*}
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Appendix A - Review - A.4 Factoring Polynomials - A.4 Assess Your Understanding - Page A40: 126
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