Answer
$7^{10}x^{10}$
Work Step by Step
Using the laws of exponents, the given expression, $
(7x)^8\cdot(7x)^2
,$ simplifies to
\begin{array}{l}\require{cancel}
(7x)^{8+2}
\\\\=
(7x)^{10}
\\\\=
7^{10}x^{10}
.\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 - Review Exercises: Chapter 4 - Page 298: 10
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