And now this, in this situation, you would use a combination of the power rule and the chain rule. You'd say, okay, my g of x is two x minus five, and f of g of x is going to be this whole expression. And so if you did, if you applied the chain rule, this is going to be the derivative of the outside function, our f of x with respect to the inside function, so, or the derivative of f of g of x with respect to g of x. So it's going to be negative, we'll bring that negative out front, so we're essentially just gonna use the power rule here. Negative two x minus five to the negative two. And then we multiply that times the derivative of, times the derivative of the inside function. So the inside function's derivative, the derivative of two x is two, derivative of negative five is zero, so it's gonna be times two.