1) Let's operate those logarithmic operation: log: 9+ log (c-2) = 3
log 9+ log (c-2) = 3 Isolating log (c-2) on the left side
log 9+ log (c-2) -log 9= 3 -log 9
log(c-2)=3-log9 Rewriting log 9 as a power
log(c-2) = 3 - log 3² Applying the property
Log(c-2) = 3 - 2log3
log(c-2) =