Work Step by Step
Regroup to obtain $(x^3-x^2)+(-5x+5.)$ Factor out $x^2$ in the first group and $-5$ in the second: $x^2(x-1)+(-5)(x-1) \\=x^2(x-1)-5(x-1).$ Factor out $(x-1)$ to obtain $(x-1)(x^2-5).$
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