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.
(3r - r(1-2x^2) - 2wx)^2 - (2lx+h-2r)^2(1-x^2)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random