Okay, step two, the solution of h prime of x is equal to zero is equal to x equals two. Yeah, that works out. If you were to say three times x minus two squared, which is h prime of x, the first derivative, and set that equal to zero, this is going to be true when x is equal to two. And so any point where your first derivative is equal to zero or it's undefined, it is indeed a critical point. So this step looks good so far. And then step three, h has a relative extremum at x equals two. All right, so she made a big conclusion here.