Answer
$25x^2$
Work Step by Step
When we raise a term inside parentheses to a power, we must raise each part of the term to that power, and then multiply. Therefore, $$(5x)^2=5^2\cdot x^2=25\cdot x^2=25x^2$$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 8 - Polynomials and Factoring - Get Ready! - Page 483: 15
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