1. The problem statement, all variables and given/known data Find the derivative using logarithmic differentiation: y=(x+5)(x+9) 3. The attempt at a solution lny=ln(x^2+14x+45) lny=(2x+14)/(x^2+14x+45) y'=(x^2+14x+45)((2x+14)/(x^2+14x+45)) However, I know the derivative of the function is actually 2x+14. So I am wondering what is wrong with my process? UPDATE: Wow it only took typing my problem into this forum and making the post before I realized that I did do it right! You guys are good! lol sorry for wasting any ones time.