Question 548548: Please help me find the domain.
State the domain:
f(x) = (2x^2 - 9)/ (x^3 - 16x)
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Please help me find the domain.
State the domain:
f(x) = (2x^2 - 9)/ (x^3 - 16x)
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The denominator cannot be zero:
Solve: x^3-16x = 0
x(x^2-16) = 0
x(x-4)(x+4) = 0
x = 0, 4, or -4
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Domain: All Real Numbers except x = -4, or x = 0, or x = 4
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Cheers,
Stan H.
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