So if we just take each of these two terms of the numerator and divide them by t squared, we're going to get t to the third divided by t squared is just t, and then two divided by t squared, we could write that as plus two t to the negative two power. And now let's take the derivative. So the velocity function, the velocity as a function of time, just the derivative of this with respect to time. So it's going to be derivative of t with respect to t is one. Derivative of two t to the negative two, let's see, negative two times positive two is negative four t to the, and we just decremented the exponent here, t to the negative negative three power. Now, to find acceleration as a function of time, we just take the derivative of this with respect to time. So acceleration as a function of time is equal to, actually since I've already used that color for the average, let me do a different color now.