#### Answer

8

#### Work Step by Step

We are told that $\sqrt[n] a^{n}=|a|$, when n is an even positive integer.
In this case, $a=-8$.
$\sqrt (a)^{2}=|a|$
$|-8|=8$

Published by
Pearson

ISBN 10:
0321785045

ISBN 13:
978-0-32178-504-6

8

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