Question

factarise: x³-2x²-x+2
​

Answer 1

Answer:

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

Step-by-step explanation:

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

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

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

Answer 2

x

3

−2x

2

−x+2

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

2

(x−2)−1(x−2)

= (x-2)( x^{2} -1)=(x−2)(x

2

−1)

= (x-2)(x+1)(x-1)=(x−2)(x+1)(x−1)