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.
(sqrt(5)-1)(sqrt(5)-7)/4 = 3-2sqrt(5)
(sqrt(5)-1)(sqrt(5)-7)/4 = 3-2sqrt(5)
Natural Language
Math Input
Extended Keyboard