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.
UPGRADE TO PRO
APPS
TOUR
(ab)^3 + (ac)^3 +(bc)^3 - a^(4)bc-ab^(4)c-abc^4=0
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random