So this is going to be positive. And if you tried three, three minus two squared is one times 12. Well, that's also going to be positive. And so you're going to be concave upwards, at least at these test values, it looks like on either side of two, that the sign of the second derivative is positive on either side of two. And you might say, well, maybe I just need to find closer values. But if you inspect the second derivative here, you can see that this is never going to be negative. In fact, for any value other than x equals two, this value right over here, since we're, even if x minus two is negative, you're squaring it, which will make this entire thing positive, and then multiplying it times a positive value.