Question

2. Factorise :
(i) x3 - 2x2 - x + 2
(ii) 23 - 3x2 - 9x - 5
(iii) x3 + 13x2 + 32x + 20
(iv) 2y3 + y2 - 2y - 1
T​

Answer 1

Answer:

1)x3 - 2x2 -x+2 =x2(x-2)-1(x-2)

(x2-1)(x-2)

x=1 /2 and x=2