So this is going to be the same thing as the derivative with respect to x of x squared plus the derivative with respect to x of y squared. I'm writing all my orange stuff first. So let's see, this is going to be x squared, it's gonna be y squared, and then this is going to be equal to the derivative with respect to x of a constant. This isn't changing with respect to x. So we just get zero. Now, this first term right over here, we have done many, many, many, many, many times. The derivative with respect to x of x squared is just the power rule here.