Question 937639
simplify 
-log((x-5)(x+1)) +log(x^2-1)
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= log[(x^2-1)/[(x-5)(x+1)]]
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= log[[(x-1)(x+1)]/[(x-5)(x+1)]]
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= log[(x-1)/(x-5)]
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Cheers,
Stan H.
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