help! logarithm

i need to condense it! please help

rosie:

3log base 7 c+ log base 7 a/ 2

this is a page that I always keep nearby when I am dealing with logs
http://en.wikipedia.org/wiki/List_of_logarithmic_identities

Now, this is how I have interpreted your question,

3log ₇C + log ₇(A/2)

= log ₇C ³ + log ₇(A/2)

= log ₇[AC ³/2 ]