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Solve the equation log 3(x-8)=2.
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Best answer as selected by question asker.
Before solving the equation, which is a logarithmical equation, we have to find out the restrictive domain for the x values.
For this reason, we have to impose the condition that x-8>0.
x>8, that means that x belongs to the interval (8, +inf).
Now, we can solve the equation:
The solution is acceptable because is belonging to the interval of allowed x values.
Posted by giorgiana1976 on March 31, 2010 at 1:46 AM (Answer #1)
x=8.66.... or x=8+2/3
Posted by isbeatbox on March 31, 2010 at 2:05 AM (Answer #2)
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