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[(1+x+x^2+x^3+x^4+x^5+x^6)^15]
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
