Anything lateral log of zero is not defined. There is no power that you could take e to to get to zero. And natural log of negative numbers is not defined. So that is the domain. The domain is all real numbers such that all real numbers x is greater than zero. So our absolute extrema have to be within that domain. So to find these, let's see if we can find some local extrema and see if any of them are good candidates for absolute extrema.