So this right here, this is the derivative with respect to x of x to the fifth. And we know how to do that using the power rule. This is going to be equal to 2 times, let me write that, I want to keep it consistent with the colors. This is going to be 2 times derivative of x to the fifth. Well, the power rule tells us n is 5. It's going to be 5x to the 5 minus 1, or 5x to the fourth power. So it's going to be 5x to the fourth power, which is going to be equal to 2 times 5 is 10x to the fourth.