SOLUTION: log_3(x+6)+log_3(x-6)-log_3x=2

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Question 861053: log_3(x+6)+log_3(x-6)-log_3x=2
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

log%283%2C%28x%2B6%29%28x-6%29%2Fx%29+=+2

    %28x%2B6%29%28x-6%29%2Fx++=+9

        x^2 - 36 = 9x

        x^2 - 9x - 36 = 0

         (x +4)(x-12) = 0     |Tossing out negative x as an extraneous root

                 x = 12