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.
8
.
7
5
4
+
z
*
6
*
7
+
0
.
1
5
*
1
4
0
-
z
Math Input
Natural Language
Math Input