SOLUTION: solve log(x-4) + log(x+5)=1 algebraically

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Question 435479: solve log(x-4) + log(x+5)=1 algebraically
Answer by solver91311(24713) About Me  (Show Source):
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The sum of the logs is the log of the product:



Use



and since an unspecified base presumes base 10:



Just solve the quadratic. Discard any root that makes either log argument outside of the domain of the log function.

John

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