Answer
$16a^{4}b^{4}$
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, $(2ab)^{4}=2^{4}a^{4}b^{4}=16a^{4}b^{4}$.
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