Answer
$x^{7}y^{7}$
Work Step by Step
Based on the power of a product rule, we know that $(ab)^{n}=a^{n}b^{n}$ (where $n$ is a positive integer and $a$ and $b$ are real numbers).
Therefore, $(xy)^{7}=x^{7}\times y^{7}=x^{7}y^{7}$.
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