Simplify: 3 log x + log y - 2 log z.
Notes:
1. a log b = log ba
2. log b + log c = log b x c
3. log b - log c = log
3 log x + log y - 2 log z = log x3 + log y - log z2
3 log x + log y - 2 log z = log x3 x y - log z2
3 log x + log y - 2 log z = log x3y - log z2
Apply log b - log c = log
3 log x + log y - 2 log z = log ()