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