Use this rule of logs:  



Now use this rule of changing radicals to fraction exponents:   and in particular  



Now use this rule of logs:  



Let's put a  written as  in front of the first term, so
we can factor out a 



Factor out 



Now let's factor  as the difference of two squares, and get .  So replacing that



Use this rule of logs:  



Remove the inner parentheses which are preceded by a negative sign:



The first two log terms inside the big parentheses are like terms so
we can combine them:



Edwin