Instead of saying the cube root of x squared, we could say this is x squared to the 1 3rd power, which is the same thing as the derivative with respect to x of, well, x squared, if I raise something to an exponent and then raise that to an exponent, I could just take the product of the exponents. And so this is just going to be x to the two times 1 3rd power, or to the 2 3rds power. And now this is just going to be equal to, I'll do it right over here, bring the 2 3rds out front, 2 3rds times x to the, what's 2 3rds minus one? Well, that's 2 3rds minus 3 3rd, or it would be negative 1 3rd power. And we wanna know what happens at x equals eight, so let's just evaluate that. That's going to be 2 3rds times x is equal to eight to the negative 1 3rd power. Well, what's eight to the 1 3rd power?