I am trying to differentiate ((5x-1)^4)((8x^2-5)^-3) but i am stuck at a certain point.....(adsbygoogle = window.adsbygoogle || []).push({});

Can you please help me fill in the blanks?

Thank you so much:):)

Work done:

1st step: (5x-1)^4 d/dx (8x^2-5)^-3 + (8x^2-5)^-3 d/dx(5x-1)^4

2nd step: (5x-1)^4 (-3)(8x^2-5)^-4 (16x)(8x^2-5)^-3 + (4)(5x-1)^3 (5)

3rd step: (I dont know what goes here.....something x) (5x-1)^4 (8x^2-5)^-4 +9(5x-1)^4 (8x^2-5)^-3

Answer: 4(5x-4)^3 (8x^2-5)^-4 (I dont know what goes here)

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Calculus (chain rule)

**Physics Forums | Science Articles, Homework Help, Discussion**