SOLUTION: List all numbers for which the rational expression is undefined. x^2-4/x^2-8x+15

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Question 327073: List all numbers for which the rational expression is undefined.
x^2-4/x^2-8x+15
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The expression is undefined when the denominator equals zero.
x%5E2-8x%2B15=%28x-3%29%28x-5%29
This occurs when x=3 and x=5.