Hi.

I've not actually been taught how to factorise the following, and I'm required to do so for upcoming exams.

$\displaystyle x^3 - 4x^2 + x + 6$

The book states a simplified version of the above is the following:

$\displaystyle (x - 3)(x^2 - x - 2)$

Could someone please explain to me how you get from the above equation to the simplified one?

Thanks.