Answer
$a^{2}b^{2}$
Work Step by Step
We are given that $(ab)^{2}=ab^{2}$.
However, according to the table on page 270, we know that $(ab)^{m}=a^{m}b^{m}$.
Therefore, we know that $(ab)^{2}=a^{2}b^{2}$.
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