Answer
$14n^{5}-7n^3$
Work Step by Step
Using $a(b+c)=ab+ac$ or the Distributive Property, the given expression, $
7n^3(2n^2-1)
$, is equivalent to
\begin{array}{l}\require{cancel}
7n^3(2n^2)-7n^3(1)
\\\\=
14n^{5}-7n^3
.\end{array}
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 4 - Polynomials - 4.6 Special Products - 4.6 Exercise Set - Page 277: 61
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