Question 419734
 Find all numbers for wwhich rational expression is undefined.
p^3-8p/p^2-49
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Factor where you can to get:
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[p(p^2-8))]/[(p-7)(p+7)]
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Undefined when the denominator is zero.
Undefined for p = 7 and for p = -7.
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Cheers,
Stan H.
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