Question 75946: Without solving the inequality, what are the restrictions of x if log base 2^(x-1) - log base 2^(x+1) > 9? Please explain. Thank you.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! what are the restrictions of x if log base 2^(x-1) - log base 2^(x+1) > 9?
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Rule to follows:
To find log(x), x must be greater than zero.
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Your Problem:
For log(base 2) (x-1), x-1 >=0 ; x must be >=1
For log(base 2) (x+1), x+1 >=0 ; x must be >=-1
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Both of these conditions can be met as long as x>=1
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Cheers,
Stan H.
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