Answer
$x^{\frac{2}{5}}y^{\frac{4}{5}}$
Work Step by Step
$\sqrt[20] (x^{8}y^{16})=x^{\frac{8}{20}}y^{\frac{16}{20}}=x^{\frac{8\div4}{20\div4}}y^{\frac{16\div4}{20\div4}}=x^{\frac{2}{5}}y^{\frac{4}{5}}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 12 - Cumulative Review - Page 913: 28
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