00:01
Okay, so here we got our function of two variables.
00:06
F of x comma y equals xy minus 2x minus 2y minus 2y minus x squared.
00:21
Okay, so let's find the critical points of this function.
00:26
In order to do this, we need to find the gradient of this function.
00:30
Which is, okay, the partial derivative with respect to x.
00:35
Oh, let me write this f.
00:37
I don't like it.
00:39
Okay, this one is better, more or less.
00:44
Okay, so i was saying, let's find the partial derivative of f with respect to x.
00:51
So this one is going to be y minus 2, minus 2x here...