SOLUTION: what is the domain of the rational function f(x)=x/x^3-125
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Question 404007: what is the domain of the rational function f(x)=x/x^3-125
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
what is the domain of the rational function f(x)=x/x^3-125
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The denominator cannot zero
Solve by factoring:
x^3-125 = (x-5)(x^2+5x+25) = 0
x = 5 or x = [-5+-sqrt(25-100)]/2
Only x = 5 is a Real Number.
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Domain: All Real Numbers except x = 5.
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Cheers,
Stan H.
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