Question
Simplify the following:$\frac{4\text{ab}^2(-5\text{ab}^3)}{10\text{a}^2\text{b}^2}$
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Answer
$\frac{4\text{ab}^2(-5\text{ab}^3)}{10^2\text{b}^2}$$=-\frac{20\text{a}^2\text{b}^5}{10\text{a}^2\text{b}^2}=-2\text{b}^3$
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