sum (5!/(y!(5-y)!))(sum (-1)^(5-z)(5!/(z!(5-z!)))z^y, z=0 to 5), y=0 to 5sum (5!/(y!(5-y)!))(sum (-1)^(5-z)(5!/(z!(5-z!)))z^y, z=0 to 5), y=0 to 5

• Natural Language
• Math Input