Answer
$4x^{4}$
Work Step by Step
$(16x^{8})^{\frac{1}{2}}=\sqrt (16x^{8})=4x^{4}$
We know this because $(4x^{4})^{2}=4x^{4}\times4x^{4}=(4\times4)\times x^{4+4}=16x^{8}$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 7 - Section 7.2 - Rational Exponents - Exercise Set - Page 424: 12
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