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.
1 [6(4-1)]-4[(5)(4-1)] + 8[5(1)-6(6+1)] + 1[5(-1+2)-6(-5)]
1 [6(4-1)]-4[(5)(4-1)] + 8[5(1)-6(6+1)] + 1[5(-1+2)-6(-5)]
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
