Answer
$\frac{7c^{14}}{d^{11}}$
Work Step by Step
$\frac{7c^{5}d^{-8}}{c^{-9}d^{3}}$
$7\times c^{5+9}\times\frac{1}{d^{3+8}}$
$7\times c^{14}\times\frac{1}{d^{11}}$
$\frac{7c^{14}}{d^{11}}$
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