Well, once again, you might say, hey, how do I take the derivative of something like this, especially if my goal, or if I'm thinking that maybe the power rule might be useful? And the idea is to rewrite this as an exponent. If you could rewrite the cube root as x to the 1 3rd power. And so the derivative, you take the 1 3rd, bring it out front, so it's 1 3rd, x to the 1 3rd minus one power. And so this is going to be 1 3rd times x to the 1 3rd minus one is negative 2 3rds, negative 2 3rd power, and we are done. And hopefully through these examples, you're seeing that the power rule is incredibly powerful. You can tackle a far broader range of derivatives than you might have initially thought.