Asked by tor

log5(15)+log5(405)−5log5(3) =?
Answered by Steve
regardless of the base,

log15+log405-5log3
= log(15*405/3^5) = log(25)

Since we are using base 5,

log_5(25) = 2
since 5^2 = 25
Answered by tor
thank you
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