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 a r (2 r_0 - 3 r) = 0 for r
solve a r (2 r_0 - 3 r) = 0 for r
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
