Question

f(x) =(2 x + 2)/(5 x + 7) f'(3)
i get 2/11 as my answer but it says its incorrect?

Answer 1

what did you get for the derivative?

Answer 2

i think your mistake must be there

Answer 3

4/(5x+7)

Answer 4

((5x+7)(2)-(2x+2)(5))/(5x+7)

Answer 5

i forgot to square the bottom facepalm/

Answer 6

yeah think so
also the numerator is \(4\)

Answer 7

ah there we go thanks

Answer 8

4/484