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.
e
x
p
a
n
d
2
*
a
-
3
*
b
-
2
*
2
*
a
+
a
+
3
*
b
Math Input
Natural Language
Math Input
