So let me rewrite it. f prime prime of x is equal to 12x times 3x minus 2. So if x is greater than 2 thirds, this term right here is going to be positive. That's definitely, you know, any positive number times 12 is going to be positive. But what about this term right here? 3 times 2 thirds minus 2 is exactly 0. That's 2 minus 2.