SOLUTION: Express as a single logarithm and simplify: logx+logy-logz-logw how do I do this one?

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Question 34188: Express as a single logarithm and simplify:
logx+logy-logz-logw
how do I do this one?
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
The log of a product is the sum of the logs.
The log of a quotient is the difference of the logs.
Thus
logx + logy - logz - logw =
logx + logy - (logz + logw) =
log(xy) - log(wz) =
log(xy/wz)