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. So this is negative 1 1 2. And this part right over here is positive four. So positive four minus 1 1 2, we could either write that as three and a half, or if we wanted to write it as an improper fraction, we could write this as seven halves.