Answer
$2|2y+z|$
Work Step by Step
$\sqrt[4] (16(2y+z)^{4})=\sqrt[4] (16\times(2y+z)^{4})=\sqrt[4] 16\times\sqrt[4] ((2y+z)^{4})=2|2y+z|$
We know that $\sqrt[4] 16=2$ because $2^4=16$.
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 7 - Review - Page 468: 21
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