Question 227794: I need to solve this problem
log5x/logx= 3
could you please help me solve this equation
thank you very much, viki Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! log5x/logx= 3
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log(5x) = 3log(x)
log(5x) = log(x^3)
x^3 = 5x
x^3 - 5x = 0
x(x^2-5) = 0
x = 0
0 is not allowed
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x = +sqrt(5)
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-sqrt(5) is not allowed due to the log function
