We're going to do the chain rule again. The derivative of, we're going to take the derivative of ln with respect to x squared. So the derivative of ln of x is 1 over x. But now we're going to have 1 over not x, but 1 over x squared. So to be clear, this part right over here is g prime of not x. If it was g prime of x, this would be 1 over x. But instead of an x, we have our h of x there.