So the derivative of h with respect to x is equal to 3 times the derivative of f with respect to x plus 2 times the derivative of g with respect to x. And if we wanted to write it in this kind of prime notation here, we could rewrite it as h prime of x is equal to 3 times f prime of x. So this whole part right over here, that is the same thing as f prime of x. So it's 3 times f prime of x plus 2 times g prime of x. And once you kind of are more fluent with this property, the derivative of the sum of two things is the sum of the derivatives. And the derivative of a scalar times something is the same thing as the scalar times the derivative of that something. You really could have gone straight from here to here pretty quickly.