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.
Sum[Binomial[19,i]*Binomial[34,8-i],{i,0,8}]-Binomial[19+34,8]
Sum[Binomial[19,i]*Binomial[34,8-i],{i,0,8}]-Binomial[19+34,8]
Natural Language
Math Input
Extended Keyboard