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.
[x^2+y^2-8*x-4*y+15=0,(-y+7-x)*(-y+(x+5)/2)*(-y+2*x-11)=0]
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random