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.
foci of x^2 + xy + 2y^2 + x + 2y = 1
foci of x^2 + xy + 2y^2 + x + 2y = 1
Natural Language
Math Input
Extended Keyboard
