Answer
$\frac{a^{8}}{b^{4}c^{6}}$
Work Step by Step
$(\frac{a^{-4}b^{2}}{c^{-3}})^{-2}$
=$\frac{(a^{-4})^{-2}(b^{2})^{-2}}{(c^{-3})^{-2}}$
=$\frac{(a^{8})(b^{-4})}{(c^{6})}$
=$\frac{a^{8}}{b^{4}c^{6}}$
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