Question 73210
Remember:
log(ab)=loga + logb
log(a/b)=loga - logb
loga^b = bloga
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Just keep in mind this is all base 4:

log(4 lower)xy^3/z 
=log(x)+log(y^3)-logz
 
=log(x) +3log(y) -log(z)

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Cheers,
Stan H.