SOLUTION: Find all numbers that must be excluded from the domain of the rational expression. x - 9/x^2 + 4x - 45

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Find all numbers that must be excluded from the domain of the rational expression. x - 9/x^2 + 4x - 45      Log On


   

Question 777009: Find all numbers that must be excluded from the domain of the rational expression.
x - 9/x^2 + 4x - 45
Answer by solver91311(24713) About Me  (Show Source):
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Set the denominator polynomial equal to zero and solve. The zeros of the denominator are the values to exclude from the domain.

John

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