Posted by Brett on Sunday, November 6, 2011 at 10:33pm.
Differentiate.
f(x)= 8e^(5x)

Calculus  Steve, Monday, November 7, 2011 at 12:55pm
if y = e^u and u is a function of x,
y' = e^u u'
f(x) = 8e^5x
df/dx = 8e^5x * 5 = 40 e^5x