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.
simplify (n+1)^2 (3n+1) - (n+2)^2 (3n-2)
simplify (n+1)^2 (3n+1) - (n+2)^2 (3n-2)
Natural Language
Math Input
Extended Keyboard