Factor
\frac{-1024m^{2}n^{4}-192mn^{5}-9b^{6}}{64}
Evaluate
-16m^{2}n^{4}-3mn^{5}-\frac{9b^{6}}{64}
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\frac{-9b^{6}-192mn^{5}-1024m^{2}n^{4}}{64}
Factor out \frac{1}{64}.
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