Answer
$\frac{(2a-1)}{(a-3)^{2}(a+2)}$
Work Step by Step
Given : $\frac{2a-1}{a-3} \times \frac{1}{a^{2}-a-6}= \frac{2a-1}{a-3} \times \frac{1}{(a-3)(a+2)}=\frac{(2a-1)}{(a-3)^{2}(a+2)}$
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