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.
mean 5 3 (4/2) 3 5^2 3
mean 5 3 (4/2) 3 5^2 3
Natural Language
Math Input
Extended Keyboard