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

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- March 4th 2011, 12:27 PMankhmorFinding roots
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 - March 4th 2011, 12:36 PMpickslides
make , so

Now solve for x. - March 4th 2011, 11:29 PMCaptainBlack
Why, where has this come from and are you sure that you have posted it correctly?

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

CB - March 5th 2011, 02:08 AMHallsofIvy