Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Section P.3 - Radicals and Rational Exponents - Exercise Set: 88

Answer

$4$

Work Step by Step

RECALL: $a^{\frac{m}{n}}=(\sqrt[n]{a})^m.$ Use the rule above with m=2 and n=3 to obtain $(\sqrt[3]{8})^2 \\=(\sqrt[3]{2^3})^2 \\=2^2 \\=4.$
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