So 12 divided by negative three is negative four, and we're going to evaluate that from at two and at one. And so this is going to be equal to, when we evaluate it at two, at the upper bound of our interval, it's gonna be negative four times two to the negative three power. So it's negative four times, what is that, two, that's one over two to the third, times 1 1 8th is one way to think about that. And then we're gonna have minus this evaluated at one. So minus negative four times t to the negative three, or one to the negative three is just one. So it's just gonna be negative four times one. And this is going to be equal to, we're really in the home stretch now, this is equal to, this part right over here is negative 1 1 2.