Turunan F(x) =2x+5/3x-4

u = 2x + 5
u' = 2
v = 3x - 4
v' = 3

f'(x) = (u'v - uv') / v^2
f'(x) = (2(3x-4) - (2x+5)3) / (3x-4)^2
f'(x) = (6x - 8 - 6x - 15) / (3x-4)^2
f'(x) = -23 / (3x - 4)^2