I have a practise C1 exam tomorrow for my AS Level Maths & I am revising at the moment & cannot work out how to factorise a cubic equation which I have from a different past paper.
I could probably get it after a while but if anyone knows a way to generally factorise cubics I would be greatful if you could explain as my notes dont seem to make sence to me.
The said equation is x ^ 3 - 3x ^ 2 - 6x + 8
I have tried getting a linear & quadratic from it but I cant seem to get it right. In the end I need 3 linear factors of it.
If anyone could explain I would be very greatful. Its a non calculator paper so shouldnt be too complex.