Answer
$4xy^{\frac{2}{5}}$
Work Step by Step
RECALL:
$\sqrt[n]{a^m}=a^{\frac{m}{n}}$
For the given expression, $n=5$ and $m=2$.
Thus, using the rule above gives:
$4x\sqrt[5]{y^2} = 4xy^{\frac{2}{5}}$
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