I have a test today on logarithms and I dont know how to do it at all HELP ME PLEASE!

Question

i need to know the basics 

 

 

adding logs subtracting logs all that good stuff

Answer 1

Let "a" , "b" , and  "c"  be numbers

 

 

log(a) + log(b) = log(ab)

 

log(a) - log(b) = log(a / b)

 

log(a) + log(b) - log(c) = log[(ab / c)]

 

 

Whenever you see a positive log term, the argument of that log term goes in the numerator.

Whenever you see a negative log term, the argument of that log goes in the denominator.