# SOLUTION: Given x= x+7 _______ x^(2)-9 determine the domain. A. All real numbers except –3 and 3 B. All real numbers except –7 and 3

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 Question 364436: Given x= x+7 _______ x^(2)-9 determine the domain. A. All real numbers except –3 and 3 B. All real numbers except –7 and 3 C. All real numbers except –7, –3, and 3 D. All real numbers except 0 Found 2 solutions by Fombitz, Theo:Answer by Fombitz(13828)   (Show Source): You can put this solution on YOUR website!I think you mean The domain is all numbers except those that make the denominator equal zero since division by zero is undefined. A) All except and . Answer by Theo(3458)   (Show Source): You can put this solution on YOUR website!Expression is: The denominator will be 0 when x = 3 or x = -3. The domain should be all real numbers except x = 3 and x = -3. A graph of your equation looks like this: The numerator in the rational expression can be 0, but the denominator can't. Your selection would be A.