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.
expand (a^2+1)(b^2+1)(c^2+1)-(ab+bc+ca-1)^2
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random