# Thread: Find the critical numbers of the func

1. ## Find the critical numbers of the func

Find the critical numbers of the function.
f(x) = x^5e^-8x

2. Originally Posted by Evan.Kimia
Find the critical numbers of the function.
f(x) = x^5e^-8x

hi
$f(0)=0$.
$0$ is a critical number.