Angiv f'(x) !

Hej allesammen :D. Jeg har lige siddet og bøvlet med følgende opgave, hvor jeg skal finde f'(x). Nogen der har tid til at rette den igennem :D??

f1(x)= e^x-e^2x => f1'(x)= e^x-2e^2x

f2(x)=2e^x-xe² => f2'(x)=2e^x-e²

f3(x)=x³*e^-2x = f(g(x))

g(x)=e^-2x => g'(x)=e^-2x

f(x)=x³ => g'(x) = 3x²

= f3'(x)=(3x²-2x³)e^-2x

f4(x)=3^x-5^x

g(x)=3^x -> g'(x) =3^x*ln(3)

f(x)=-5^x -> f'(x)=-5^x*ln(5)

f4'(x)=ln(3)*3^x- ln(5)*5^x

f5(x)=e^3x -> f'(x)=3e^3x

f(6)=5^x*e^-x

g(x)=5^x*e^-x

g(x)=5^x -> g'(x)=5^x*ln(5)

f(x)=e^-x -> f'(x)=e^-x

f6'(x)=ln(5)*5^x*e^-x

f7(x)=e^2x/e^x ________________________?

f8(x)=e^x-1 / e^x

g(x)=e^x-1 -> g'(x)=e^-x

f(x)=e^x -> f'(x)=e^x

^{______ ???}

f9(x)=e^3x/e^x+2 = ____________