You would have to put a negative 1 4th outside of it in order for it to be, in order negative 1 4th times negative four, you're just multiplying by one, which doesn't change the value. And then here you'd clearly see, here you'd clearly see that this is, this right over here is the derivative of e to the negative four x. So you'd have e to the negative four x. The antiderivative of this is e to the negative four x, and then you have this negative 1 4th over here. So either way, hopefully that makes sense. We go into more detail of that earlier in the calculus playlist. So then this is from, we're gonna evaluate it at one and at zero.