SOLUTION: Determine the restricted value(s) x^2-4x-21/x^2+16 Please help me work threw this. Thanks

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Question 171375: Determine the restricted value(s)
x^2-4x-21/x^2+16
Please help me work threw this.
Thanks
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Determine the restricted value(s)
x^2-4x-21/x^2+16
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There is no restricted value as x^2+16 cannot zero as long as
x is a Real Number.
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Cheers,
Stan H.