Answer
$\color{blue}{5k^2|m|}$
Work Step by Step
RECALL:
If $n$ is an even integer, $\sqrt[n]{a^n} = |a|$
Using the rule above gives:
$\sqrt{25k^4m^2}
\\=\sqrt{5^2k^4m^2}
\\= {|5k^2m|}
\\=\color{blue}{5k^2|m|}$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter R - Review of Basic Concepts - R.7 Radical Expressions - R.7 Exercises - Page 75: 37
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