Question

Implicit differentiation ~ I keep getting this one wrong: http://www.tiikoni.com/tis/view/?id=edb260e

Answer 1

Help appreciated! :)

Answer 2

can i see what you have after differentiating both sides
do not solve for anything
i'm just asking for the step that happens from the differentiation

Answer 3

nevermind i think i see the problem

Answer 4

the negative you have there outside the fraction
I think you missed located it

Answer 5

I think you meant to put that negative right beside the 2x^4y term

Answer 6

check the sign

Answer 7

\[x^4y^2-x^4y+5xy^3=0\]taking the derivative with respect to \(y\)
\[2x^4y-x^4+15xy^2+\left(4x^3y^2-4x^3y+5y^3\right) \frac{dx}{dy}=0\\
\frac{dx}{dy}=-\frac{2x^4y-x^4+15xy^2}{4x^3y^2-4x^3y+5y^3}\]

Answer 8

Yes that was it! Thank you all!