Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

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 A39: 1

Answer

$3x(x+2)(x-2)$

Work Step by Step

Looking for common monomial factors and then factoring by a difference of two squares, we have $$ 3x^3 - 12x=3x(x^2-4)=3x(x+2)(x-2) .$$
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