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.
2.0*10^(-11) = (x(x + 1.87 * 10^(-5)))/(0.2183)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random