Question 909438
log3(x) + log3(5y) is the same as log3(x * 5y)


this is based on the logarithm property that log(a*b) = log(a) + log(b)


this applies to all log bases as long as they are the same.


here's a good reference on logs that you might find helpful.


<a href = "http://www.wtamu.edu/academic/anns/mps/math/mathlab/col_algebra/col_alg_tut44_logprop.htm" target = "_blank">http://www.wtamu.edu/academic/anns/mps/math/mathlab/col_algebra/col_alg_tut44_logprop.htm</a>