Question 201176
2log(b) x -3( log(b) y + log(b) z 
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remember a log c = logc^a
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log(b)x^2 -log(b)y^3 -log(b)z^3
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remember log a +log b = log(a*b),,,and  log a -log b =log(a/b)
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log(b) { x^2 / y^3 * z^3 }
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checking,  let  b=10,,,  a=1, ,, b=2,,,c=3
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original  eqn  =  -2.33,,,,answer  = -2.33,,,,,ok