SOLUTION: what is the domain of the function ln(x^2-9x+20)

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Question 587362: what is the domain of the function ln(x^2-9x+20)
Answer by lwsshak3(11628) About Me  (Show Source):
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what is the domain of the function ln(x^2-9x+20)
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Domain for numbers of logarithms>0
x^2-9x+20>0
(x-5)(x-4)>0
number line
<...+...4.....-.....5....+.....>
Domain: (-∞,4) U (5,∞)