What is log x + log y - 2 log z written as a single logarithm?

We are using these  log properties

log a +  log b  =  log(a * b)

log a - log b  =  log (a /b)

alog b  =  log b^a

So we have

log x  + log y - 2 log z    =

log  (x * y)  - log z^2

log  [ (x * y) / z^2 ]

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