Hi,

Is there some kind of formula for factorizing cubic s?

By formula i mean. If we have a second degree polynomial $\displaystyle x^2+6x+12$ we know we need two numbers that multiply to give us 12 and add together to give us 6. Is there any similar forumula for cubics?

Im having some difficulties factorizing the expression $\displaystyle x^4-11x^3-36x^2-36$ i know that 2 is a factor so after taking out x-2 i end up with $\displaystyle x^3-9x^2+18$

The closest i got was $\displaystyle (x-6x)(x^2-3x)$ doesn't really cut it though =/