Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
(2%20%2B%201/x)%5Ex%20-%202*(2%20%2B%201/(x-1))%5E(x-1)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random