SOLUTION: How do I write log(x+1)+ log(x-1) as a single log using the properties of logarithms?

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: How do I write log(x+1)+ log(x-1) as a single log using the properties of logarithms?      Log On


   



Question 517125: How do I write log(x+1)+ log(x-1) as a single log using the properties of logarithms?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The rule is:
+log%28a%29+%2B+log%28b%29+=+log%28a%2Ab%29+
+log%28x%2B1%29+%2B+log%28x-1%29+=+log%28%28x%2B1%29%2A%28x-1%29%29+
+log%28x%2B1%29+%2B+log%28x-1%29+=+log%28x%5E2+-1%29+