#### Answer

$-3$

#### Work Step by Step

RECALL:
(i) $a^{\frac{1}{5}}=\sqrt[5]{a}$
(ii) $\sqrt[5]{a^5}=a$
Use rule (i) above to obtain:
$=-\sqrt[5]{243}$
Write 243 as $3^5$:
$=-\sqrt[5]{3^5}$
Use rule (ii) above to obtain:
$=-3$

Published by
Pearson

ISBN 10:
0-13417-805-X

ISBN 13:
978-0-13417-805-9

$-3$

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