Factor
\left(w-2\right)\left(w^{2}+4\right)
Evaluate
\left(w-2\right)\left(w^{2}+4\right)
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w^{2}\left(w-2\right)+4\left(w-2\right)
Do the grouping w^{3}-2w^{2}+4w-8=\left(w^{3}-2w^{2}\right)+\left(4w-8\right), and factor out w^{2} in the first and 4 in the second group.
\left(w-2\right)\left(w^{2}+4\right)
Factor out common term w-2 by using distributive property. Polynomial w^{2}+4 is not factored since it does not have any rational roots.
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