SOLUTION: Find all the numbers for which the rational expression is undefined. 7/x^2+81 (7 over x squared + 81)

SOLUTION: Find all the numbers for which the rational expression is undefined. 7/x^2+81 (7 over x squared + 81)

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Question 43175: Find all the numbers for which the rational expression is undefined.
7/x^2+81 (7 over x squared + 81)
Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!

Seven divided by zero is undefined:

and
and
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