Question

(x-2) (x-1) (x +1) are the factors of polynomial ? a) x^3 + 10 x^2 + 7x -12 b)x^3-1 c) x^3-2x^2-x+2 d)x^3 + 2x^2 -4x + 12.​

Answer 1

Step-by-step explanation:

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

Option c is correct answer of the question