Answer
$5x(x-2)^{2}$
Work Step by Step
$ 5x^{3}-20x^{2}+20x\qquad$...factor out the GCF, $5x$.
$ 5x(x^{2}-4x+4)\qquad$...recognize a perfect square trinomial.
$(A\pm B)^{2}=A^{2}\pm 2AB+B^{2}$; $A=x,\ B=2$
$=5x(x-2)^{2}$
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 6 - Section 6.5 - A General Factoring Strategy - Exercise Set - Page 462: 28
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