Question

Is this correct ?
I will post the question in the post

Answer 1

I'm working on the chain rul problems on page 97, and I'm having difficulties when there is a negative exponent, for some reason I just dont get it.
There is no solution in the back for even numbered problems, so maybe you can help and let me know if this is correct or not
\[y = \frac{x-2}{(3x+5)^3}\]
I get that
\[y' = \frac{-6x+23}{(3x+5)^4}\]

I really have no idea whether it is correct or not, but if it is not, then I can show my calculation and maybe someone can point at what I'm doing wrong

Answer 2

It is correct - whatever you did, you did right.

Answer 3

really! - cool, thank you. For some reason I find the product + chain rule with a negative exponent difficult. Guess it is just a matter of practice practice practice.