Question

factorize x^3+2x^2-x-2 using factor theorem​

Answer 1

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