#### Answer

$8$

#### Work Step by Step

$x^{\frac {2}{3}}=4\Rightarrow \left( \sqrt [3] {x}\right) ^{2}=2^{2}\Rightarrow \sqrt [3] {x}=2\Rightarrow x=2^{3}=8$

Published by
Pearson

ISBN 10:
013421742X

ISBN 13:
978-0-13421-742-0

$8$

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