Gamma and Beta Function Solving

[WaterPocket]

freaky Functions turns me on !!!!

[Z00599]

what will the result be when we have the different between x & power x of e ?

for example :

x^4 e^-3x from 0 to infinity

hope that clear !

[burny1]

@Z00599 I would do a change of variable letting t=3x so dt=3dx and follow it on from there. When i did this i got Gamma(5)/27. Hope it makes sense.

[shelbob100]

thanks :)