And instead of going through all of this, you'll learn as you do more of these that you could have done this pretty much in your head, saying look, I have the three out here as an exponent. Let me multiply the three times this coefficient, because that's what we ended up doing anyway. Three times the coefficient is six x, and then three minus one is two. So you didn't necessarily have to do this, but it's nice to see that this comes out of the derivative properties that we talk about in other videos. And then finally, we have minus, and we use the power rule right over here. So bring the two out front and decrement the exponent. So it's going to be two.