Question

Factorise by long method :
${x}^{2} - 2 {x}^{2} - x + 2$
plz help this math problem
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Answer 1

$x ^{3} - 2 {x}^{2} - x + 2 \\ \\ {x}^{2} (x - 2) - 1(x - 2) \\ \\ (x - 2)( {x}^{2} - 1) \\ \\ (x - 2)( {x}^{2} - x + x - 1) \\ \\ (x - 2)(x(x - 1) + 1(x - 1)) \\ \\ (x - 2)(x - 1)(x + 1)$

hope it helps