Thread: the only real root of the equation

Prove that the only real root of the equation is .

Originally Posted by perash

Prove that the only real root of the equation is .

Well, the easy way out is to graph it, showing that there is only one real solution, then plug the target value of x into the equation and verify that it is a solution. (It'll be a real monster of an expansion, I'm sure! )

But that's probably not what you are looking for.

-Dan