Homework Help: college algebra

Posted by confused--two questions please help/steve please on Friday, November 30, 2012 at 7:07pm.

write the expression as a single logarithm
1. In(x/x*2)+In(x+2/x)-In(x^2-4)

solve the following logarithmic equation.
2. log_9(x-2)+log_9(x+1)=2

what is the exact solution?
What is the decimal approximation for the solution when rounded three decimal places.

please show work

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