SOLUTION: Log7 (5x-2) find the domain

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Question 1060358: Log7 (5x-2) find the domain
Found 3 solutions by Boreal, josmiceli, MathTherapy:
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
We can't take the log of a number than is 0 or less than 0.
Therefore, not allowed is 5x-2<=0 , 5x<=2
x<=2/5 is not allowed.
domain is x>2/5 (2/5,oo)

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+5x+-+2+ cannot be negative because
+7+ raised to any exponent has to be positive
therefore:
+5x+-+2+%3E=+0+
+5x+%3E=+2+
+x+%3E=+2%2F5+
This is the domain of +x+

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

Log7 (5x-2) find the domain 
highlight_green%28matrix%281%2C4%2C+%22Domain%3A%22%2C+x%2C+%22%3E%22%2C+2%2F5%29%29