You get, and remember, we're integrating with respect to y here. So this is going to be y squared over two. And we could put some constant there. I could call that plus c one. And if you're integrating, now that's going to be equal to, now the right-hand side we're integrating with respect to x. And let's see, you could do u substitution, or you could recognize that look, the derivative of negative x squared is going to be negative two x. So if that was a two there, and if you don't want to change the value of the integral, you put the 1 1 2 right over there.