SOLUTION: Your help is needed to solve. Thanks! Solve logarithmic equation. Express all solutions in exact form. Support your solutions by using a calculator. Log sub 5(x + 2) + lo

Question 819092: Your help is needed to solve. Thanks!
Solve logarithmic equation. Express all solutions in exact form. Support your solutions by using a calculator.
Log sub 5(x + 2) + log sub 5(x � 2) = 1

Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
Log sub 5(x + 2) + log sub 5(x � 2) = 1
Log sub 5(x + 2)(x � 2) = 1
(x + 2)(x � 2) = 5^1
(x + 2)(x � 2) = 5
x^2-4 = 5
x^2 = 9
x = {-3, 3}
but the -3 is an extraneous solution, throw it out leaving:
x = 3
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