Find the derivative of f(x)=e^2x-5(X+3)

Question

anonymous · Answer

find the derivative of $$f(x)=e^{2x-5}(x+3)$$

zepdrix · Answer

So we have the product rule here :D
Are you familiar with that?

anonymous · Answer

Hey Zepdrix, I think so yes

anonymous · Answer

what I have so far is
(e^2x-5)(x+3) + (e^2x-5)(1)=
        xe^2x-5 + 3e^2x-5+e^2x-5 =
        xe^2x-5 + 4e^2x-5=
        e^2x-5(x+4)

zepdrix · Answer

Your derivative of the exponential term in the first part has a small mistake.
When you take the derivative of e^(something)
Yes, you get back e^(something).. but you also need to apply the chain rule,

You will end up with (derivative of something)*e^(something)

anonymous · Answer

OK...Thanks

zepdrix · Answer

Uh oh you sound confused XD

zepdrix · Answer

|dw:1348949328651:dw|
Does this help maybe? :O you were very very close