Answer
$8x^3 -24x^2 - 48x+4$
Work Step by Step
We simplify by removing the parentheses and then combine the like terms as follows
$$
8(4x^3 - 3x^2 - 1) - 6(4x^3 + 8x - 2)=32x^3 - 24x^2 - 8 - 24x^3 -48x +12\\
= 8x^3 -24x^2 - 48x+4
.$$
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.3 Polynomials - A.3 Assess Your Understanding - Page A31: 36
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