Hey Chris, this is again not an analytical solution, what the original poster is looking for an analytical solution, that is, a way to solve algebraically, What you doing is putting x=2 and x=4, to make the equaiotn satisfied. If you dont know the answer(for eample in a complex version of the equation, your method of trial and guess wont work. I still insist every body not to look for abstract analyticcal solution, its just not possible. The best way to solve it is numerically or graphically