Answer
$4x(x-2)(x+7)$
Work Step by Step
$4x^3+20x^2-56x$
$4x(x^2+5x-14)$
$4x(x^2+7x-2x-14)$
$4x(x(x+7)-2(x+7))$
$4x(x-2)(x+7)$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 6 - Section 6.5 - Integrated Review - Choosing a Factoring Strategy - Page 450: 17
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