How do you solve #Log_2 (x-4) + log_2 (x+4) = 3#?
Use sum of the logarithms rule and condense the logarithms on the left. Covert logarithms to exponent form to solve. The steps are given below.
Let us use the rule
Converting the logarithms to exponent form
take square root on both the sides.
Check the validity of solution by substituting the solution in the original equation.
We can see for
Therefore the final answer is