Question

SECTION-D
Factorise: x3-2x^
-x+2.​

Answer 1

Answer:

If x = 1 then the equation will be 0.

So (x -1) is a factor.

x^3 -2x^2 -x +2

=x^3 -x^2-x^2+x-2x +2

= x^2(x-1) -x(x-1)-2(x-1)

= (x-1)(x^2 -x -2)