Question

Find the d/dx of :
f(x)=(e^x)/((ex+2)(x+3))

Answer 1

sorry the second bit is e^x as well not ex

Answer 2

ok...now I got it.

Answer 3

use d/dx [u/v]=(vu'-uv')/v^2

Answer 4

yes I did that and I still couldn't get it. My last attempt I got an answer of e^x(1-2x-3e^x) / ((e^x+2)(x+3))

Answer 5

did you get this from the first step?
\[(e^x(e^x+2)(x+3)-e^x(e^x(x+3)+e^x+2))/((e^x+2)(x+3))^2\]

Answer 6

...made a mistake. Took the derivative of x+3 as x. Thanks for the help!

Answer 7

you are welcome.