SOLUTION: Please help me solve this equation: {{{ log (sqrt (x^2-9 ))= 2 }}}

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Question 373784: Please help me solve this equation: +log+%28sqrt+%28x%5E2-9+%29%29=+2+
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
+log+%28sqrt+%28x%5E2-9+%29%29=+2+,
10%5E2+=+sqrt%28x%5E2+-+9%29,
100+=+sqrt%28x%5E2+-+9%29,
10000+=+x%5E2+-+9,
10009+=+x%5E2,
x+=+sqrt%2810009%29or x+=+-sqrt%2810009%29. Both values satisfy the original equation, and thus are the final answers.