00:01
At 53 on chapter 3, section 1, and we want to find the domain of this particular function.
00:11
So remember, there are two important things for determining the domain.
00:16
First, if there is a denominator, we want to make sure we exclude any values that make the denominator zero.
00:24
Okay, that will be a problem.
00:26
And then if there's a radical with an even index, exclude values that make the denominator zero.
00:32
Make the radican, the stuff underneath the radical, negative.
00:37
So in this function, we have a fraction.
00:41
So what we want to do is we want to determine if there are any x values that will make this expression, sorry, equal to zero.
00:54
So we're going to go ahead and try to solve it and see what happens.
00:57
So we're going to subtract 8 and we get 2x squared...