Question

Implicate Derivative! Uh! Confused. I am retyping what I have worked out using the equation editor

Answer 1

Find y' of
\[(5x-y)^4+3y^3=4072\]

I have the following so far,

\[4(5x-y)^3(5-y')+9y^2y'=0\]

Does this look correct? Where would I go from here.

Answer 2

implicit*

Answer 3

Sorry! Can you help?

Answer 4

Happy to.

Answer 5

Yeah, it looks right so far.

Answer 6

I guess i just need to cube and foil

Answer 7

Maybe that's it. Seems like a pain.

Answer 8

(25x -10xy +y^2)(5x-y)

Answer 9

You know what!!! The problem gives me and x and y to solve for y' at that point

Answer 10

maybe I can just put in x and y then solve for y'

Answer 11

Oh, nice. so it only wants y' at a specific point.

Answer 12

Yea, I am new to calculus. I though I needed y' first!

Answer 13

Looks like you're doin' well. Keep it up =)

Answer 14

Well,to solve for y' that is!

Answer 15

Thanks for the help

Answer 16

My pleasure. =D