Answer
$3x(x-1)(x+1)$
Work Step by Step
Factor out the GCF of $3x$ to obtain:
$=3x(x^2-1)$
Factor the difference of two squares using the formula $a^2-b^2=(a-b)(a+b)$ to obtain:
$=3x(x-1)(x+1)$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Section P.5 - Factoring Polynomials - Exercise Set - Page 69: 65
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