Question

93) factorise :x3- 2x²-x+2​

Answer 1

Answer:

(x+1)(x-1)(x+2)

Step-by-step explanation:

x³-2x²-x+2

= x²(x-2)-1(x-2)

= (x²-1)(x+2)

= (x²-1²)(x+2)

= (x+1)(x-1)(x+2)