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.
ax+by=3,ax^2+by^2=7,ax^3+by^3=16,ax^4+by^4=42
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random