Question

What is the implicit derivitive of:
3x²y+9y²x=-6

Answer 1

For every y use y' or dy/dx.
\[3x^2\frac{ dy }{ dx } + 6xy + 9y^2 + 18y \frac{ dy }{ dx }x = 0\]
Use algebra to rearrange and solve for dy/dx.

Answer 2

Oh ok, I had the right idea but it looks like I was backwards.

Answer 3

Your answer should look something like this:
\[\frac{ dy }{ dx } = function\]
or
\[y ' = function\]

Answer 4

Ok yeah I was putting y' in the wrong places. Thank you for the help.