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.
solve y=x^2, y=397.1161/x+549*exp(-19.57724/x) for x,y
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
