How to write a single log?

1.   Note that   3   can be written as    log₃ 27

So we have

log₃ 27   - log₃ n   =

log₃ (27 / n)

2.   And 1 can be written  as  log₂ 2

And we have

log₂ 2    + log₂ m    =

log₂ (2m)