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.
plot 2x^2-4xy+5y^2+8x-2y+9=0, 2x^2-4xy+5y^2-2=0, x^2+6y^2-2=0
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random