Answer
$$(x+\sqrt {2})(x-\sqrt {2})(x-1)$$
Work Step by Step
We have $$x^3-x^2-2x+2$$
Factoring by grou[ $$x^2(x-1) -2(x-1)$$ $$(x^2-2)(x-1)$$ $$(x+\sqrt {2})(x-\sqrt {2})(x-1)$$
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