Evaluate
-8x^{3}+10x^{2}-2x-8
Factor
2\left(-4x^{3}+5x^{2}-x-4\right)
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10x^{2}-8x^{3}-2x-8
Combine 2x^{2} and 8x^{2} to get 10x^{2}.
2\left(x^{2}-4x^{3}+4x^{2}-x-4\right)
Factor out 2. Polynomial -4x^{3}+5x^{2}-x-4 is not factored since it does not have any rational roots.
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