Factor
5n\left(-n^{3}-4\right)
Evaluate
-5n^{4}-20n
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5\left(-n^{4}-4n\right)
Factor out 5.
n\left(-n^{3}-4\right)
Consider -n^{4}-4n. Factor out n.
5n\left(-n^{3}-4\right)
Rewrite the complete factored expression. Polynomial -n^{3}-4 is not factored since it does not have any rational roots.
Examples
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