Question

Factorise : x^3 - 2x^2 - x + 2

Answer 1

Step-by-step explanation:

${x}^{ 3} - 2 {x}^{2} - x + 2$

$= {x}^{2} (x - 2) - 1(x - 2)$

$= ( {x}^{2} - 1)(x - 2)$

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

Answer 2

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