Let's see if we can take the derivative with respect to x of the fourth root of x to the third power plus four x squared plus seven. And at first you might say, alright, how do I take the derivative of a fourth root of something? It looks like I have a composite function. I'm taking the fourth root of another expression here, and you'd be right. And if you're dealing with a composite function, the chain rule should be front of mind. But first, let's just make this fourth root a little bit more tractable for us, and just realize that this fourth root is really nothing but a fractional exponent. So this is the same thing as the derivative with respect to x of x to the third plus four x squared plus seven to the 1 4th power.