SOLUTION: Find all numbers for which the rational expression is undefined. n^3-8n/n^2-9

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Question 494744: Find all numbers for which the rational expression is undefined.
n^3-8n/n^2-9
Answer by solver91311(24713) About Me  (Show Source):
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A rational expression is undefined when the denominator is equal to zero. So set the denominator expression equal to zero and solve. The solution set thus obtained will be the set of numbers for which the rational expression is undefined.

John

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