Question

factorise this question

Answer 1

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

Answer 2

$x {}^{3} - 2x {}^{2} - x + 2 \\ = x {}^{2} (x - 2) - x + 2 \\ = x {}^{2} (x - 2) - 1(x - 2) \\ = (x - 2)(x {}^{2} - 1) \\ = (x - 2)(x - 1)(x + 1) \: ans...$