Find f'(x) if f(x) = ln [x^8 (x+9)^2 (x^2 + 5)^4 ]

Question

Thank you very much for your help.

Answer 1

f(x)=ln(abc)=lna + lnb + lnc

f'(x)=1/a da/dx + 1/b (db/dx) + 1/c (dc/dx)

Go for it.

Answer 2

THANK YOU SO MUCH! =)