And so this is going to give us the natural log of a times e to the natural log of a, and I'm going to write it like this, natural log of a to the x power. Well, we've already seen this, let me, this right over here is just a. So it all simplifies, it all simplifies to the natural log of a times, times a to the x, which is a pretty neat result. So if you're taking the derivative of e to the x, it's just going to be e to the x. If you're taking the derivative of the natural log, if you're taking the derivative of a to the x, it's just going to be the natural log of a times a to the x. And so we can now use this result to actually take the derivatives of, of these types of expressions with bases other than e. So if I want to find the derivative with respect to x of eight times three to the x power, well, what's that going to be? Well, that's just going to be eight times, and then the derivative of this right over here is going to be, based on what we just saw, it's going to be the natural log of our base, natural log of three times three to the x, times three to the x.