solve the log x²-4x-5 on the base x-2.[/B]
I read a comment from someone that also saw the question that says:
making the equation equal to zero, the x values became approximately: 5.1623 and -1.1623
The Attempt at a Solution
If it was x²-4x+4, that would be igual (x-2)² and the answer would be 2, but I have no idea the guy got these broken numbers. Making what equal to zero?
the x²-4x-5? Doesn't make sense.