00:01
All right, so let's start off by moving our constant to the right side.
00:06
That's always the first step whenever you're completing the square.
00:13
So if we do that, we will have this whole, all these terms in the left, equal to negative 11.
00:21
Now to complete the square, for the x, we need to find b over 2 squared.
00:30
So b is 6, b over 2 is 3, 3 squared is 9, so that's plus 9.
00:38
And now for the y, we first have to factor out a 2.
00:49
So it'll be y squared plus 2y.
00:55
And now we need to do 2 over 2 squared, which would be 1.
01:05
And then on the right side, we add in our 9.
01:15
And, by the way, this should be a 1.
01:19
Make sure there's no confusion...