I wanna say it over and over again. This is just the chain rule. So let's do that. What do we get on the right-hand side over here? And I'll write it over here as well. This would be equal to the derivative of y squared with respect to y is just going to be two times y, two times y, just an application of the chain rule. And the derivative of y with respect to x, well, we don't know what that is, so we're just gonna leave that as times the derivative of y times the derivative of y with respect to x.