This is wrong, as you already eliminated the log function, you don't need to add it back into the problem at the end. Additionally, the are logs with an unspecified base (assumed to be 10, I guess), but certainly not natural logs, so there wouldn't be an exponential function. e only arises from the ln function.
now you got me sittin here playin with my balls tryin to figure out what youre talking about. -swick825