here P of X I over here we can come bring this together we have this over here then to bring us more closer together we're going to say well L I equals log of 2 to the L I we have difference of two logs we can bring out together the log things behind multiplied together or divided by each other if you have a negative sign so they've been negative appearing here then what is this thing over here what are we doing we're replacing let me expand it we're essentially replacing it with by bringing this thing over here