# Math Help - [SOLVED] Implicit Differentiation

1. ## [SOLVED] Implicit Differentiation

How do I get from the problem on the left side to the next step on the ride side?

2. Treat $-\frac{2xy^2}{y^4}$ and $\frac{2x^2y}{y^4} \left(\frac{-x^2}{y^2}\right)$ as seperate terms first. Expand the second one and then make a common denominator.