SOLUTION: {{{log(4, (x^2-9)) - log(4, (x+3)) = 3 }}} Solve for x. What is the sum of the solutions?
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Question 972083: Solve for x. What is the sum of the solutions?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Note that \ =\ (x\ +\ 3)(x\ -\ 3))
The log of the product is the sum of the logs of the factors, so:
\ =\ \log_4(x\ +\ 3)\ +\ \log_4(x\ -\ 3))
The orginal equation thus reduces to:
\ =\ 3)
Using  \ \ \Rightarrow\ \ b^y = x)
We can write
You should be able to finish from here.
John
My calculator said it, I believe it, that settles it
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