I introduce the 3 properties of logarithms and use them in multiple examples about how to expand logarithmic expressions. Part 2 will include examples of condensing log expressions, There is an annotation correction at 9:43 but you will not see it without Flash. I should have wrote -3 instead of -5. Here are my other PreCalculus lessons involving Logarithms Check out , there you will find my lessons organized by class/subject and then by topics within each class. Find free review test, useful notes and more at If you'd like to make a donation to support my efforts look for the "Tip the Teacher" button on my channel's homepage