Question

factorise:xcube-2xsquare-x+2

Answer 1

hey our first factor by hit and trail method is (x+1).
now divide the polynomial and we get (x-2) and (x-1)

Answer 2

Hey friend!

Ur Ans!

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${x}^{ 3} - 2 {x}^{2} - x + 2 \\ \\ = > {x}^{2} (x - 2) - 1(x - 2) \\ \\ = > ( {x }^{2} - 1)(x - 2) \\ \\ we \: know \: that \: identity \: {a}^{2} - {b}^{2} \\ = (a + b)(a - b) \\ \\ now \\ \\ = > (x + 1)(x - 1)(x - 2) \: ans$