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.
8+4sqrt(2)-4sqrt(7) with 4sqrt(2)+1
8+4sqrt(2)-4sqrt(7) with 4sqrt(2)+1
Natural Language
Math Input
Extended Keyboard
