Answer
$4|x|$
Work Step by Step
Write the radicand as a square then simplify to have
$\sqrt{4^2x^2}
\\=4|x|.$
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 6 - Radical Functions and Rational Exponents - 6-1 Roots and Radical Expressions - Practice and Problem-Solving Exercises - Page 365: 26
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