Have the equation
I've tried a couple of methods, but cannot get to that solution. Maybe my algebra is a little of, unless I got it totally wrong, thanks again.
But apparently this problem does not ask you to solve the problem, only to verify that the given function satisfies the conditions. That is much easier than solving. (For example, it would be difficult to solve the equation but very easy to verify that x= 1 is a solution.)
Given that it is easy to verify that . Its derivative is and it is easy to verify that .