Factor
\left(x-1\right)\left(2x^{2}-1\right)
Evaluate
\left(x-1\right)\left(2x^{2}-1\right)
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2x^{2}\left(x-1\right)-\left(x-1\right)
Do the grouping 2x^{3}-2x^{2}-x+1=\left(2x^{3}-2x^{2}\right)+\left(-x+1\right), and factor out 2x^{2} in the first and -1 in the second group.
\left(x-1\right)\left(2x^{2}-1\right)
Factor out common term x-1 by using distributive property. Polynomial 2x^{2}-1 is not factored since it does not have any rational roots.
Examples
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