Step two, the solution of the second derivative equaling zero is x equals two. That looks right. The second derivative is 12 times x minus two squared and we wanna make that equal to zero. This is only going to be true when x is equal to two. So step two is looking good. So step three, Olga says f has an inflection point at x equals two. So she's basing this just on the fact that the second derivative is zero when x is equal to two.