I'm not sure if this is the right forum, but this was in my calculus class.
I need to find the roots. And I want to find the precise roots, without a decimal.
Guess and check, and graphing result in a root of ~10.845
If you want the closed form roots of what you have posted you will need to use Cardarno's method for the roots of the depressed cubic, which is about halfway down >>this<< page