And so now, if we want to take the antiderivative of the stuff on the inside, we're just going to do, essentially the power rule, you could use this as the power rule of integrals, or it's the reverse of the power rule for derivatives, where we increase this exponent by one, and then we divide by that increased exponent. So this is going to be equal to 12 times x to the 1 3rd plus one, let me do it in another color just so we can keep track of it. X to the 1 3rd plus one, and then we're going to divide by 1 3rd plus one. And so what's 1 3rd plus one? Well, that's 4 3rds, 1 3rd plus 3 3rds, that's 4 3rds. So I could write it this way, I could write this x to the 4 3rds divided by 4 3rds. And this is going to be, and I'm going to evaluate this at the bounds.