Question

factorise x^3-2x^2-x+2

Answer 1

x³-2x²-x+2

=x²(x-2) -1(x-2)

= (x² -1)(x-2)

=(x+1)(x-1)(x-2)

Answer 2

$→ {x}^{2} \times (x - 2) - ( x - 2) \\→ (x - 2) \times ( {x}^{2} - 1) \\ → (x - 2) \times (x - 1) \times (x + 1)$

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hope it's helps you !!!