Answer
$2$
Work Step by Step
To solve the item mentally, note that:
$\sqrt[4]{8}\cdot \sqrt[4]{2} = \sqrt[4]{16}$ (because of the product rule for radicals)
Since $16=2^4$. then
$\sqrt[4]{16} = \sqrt[4]{2^4} = 2$
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 76: 115
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