SOLUTION: list all numbers for which the rational expression is undefined: a-4/3a-12

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Question 301811: list all numbers for which the rational expression is undefined:
a-4/3a-12
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
If it is 4 over 3a then a cannot be zero
otherwise there are no numbers which make the expression undefined