Question

Find f'(x)?

f(x)= (e^x)/(8x^2+1)

I got (e^x)(8x^2-16x-1)/(8x+1)^2 but it says I'm wrong- why??

Answer 1

let me check

Answer 2

ok?

Answer 3

+1 not -1

Answer 4

http://www.wolframalpha.com/input/?i=d%2Fdx+%28e^x%29%2F%288x^2%2B1%29

sign up and click show steps if you want more info, too lazy to care lol

Answer 5

I actually did put +1 and it still marked me wrong- wat do?

Answer 6

cuss a lot and start crying

Answer 7

inky pls

Answer 8

if wolfram alpha says it is the right answer than it is the right answer. are you missing a "f'(x)=blah blah"?

Answer 9

no wtf