Factor
\frac{864-432a+45a^{2}-a^{3}}{27}
Evaluate
-\frac{a^{3}}{27}+\frac{5a^{2}}{3}-16a+32
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\frac{-a^{3}+45a^{2}-432a+864}{27}
Factor out \frac{1}{27}. Polynomial -a^{3}+45a^{2}-432a+864 is not factored since it does not have any rational roots.
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