#### Answer

$3x^2$

#### Work Step by Step

Remember that the index is the denominator of the exponent.
Because the 2 is enclosed in parentheses with the base, it also becomes a part of the base.
$(9x^4)^{1/2}$
$\sqrt{9x^4}$
$3x^2$

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

$3x^2$

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