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.
gcd(a^4+b^4,2ab^2) = 2 * 5^4, when a = 25, b = 5
gcd(a^4+b^4,2ab^2) = 2 * 5^4, when a = 25, b = 5
Natural Language
Math Input
Extended Keyboard