SOLUTION: hi. can you help me with this? prove that log x + log(x^2 + 2) = log(x^3 +2x)is true

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Question 601103: hi. can you help me with this? prove that log x + log(x^2 + 2) = log(x^3 +2x)is true
Found 2 solutions by solver91311, richard1234:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


The sum of the logs is the log of the product:




John

My calculator said it, I believe it, that settles it
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Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
There is a nice property of logarithms that says that



Since x(x^2 + 2) = x^3 + 2x, the given identity holds.