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 (x^2+y^2=25, x^2+(y+5)^2=25, y=-2.5
plot (x^2+y^2=25, x^2+(y+5)^2=25, y=-2.5
Natural Language
Math Input
Extended Keyboard