SOLUTION: for what values of x is the rational expression below undefined? x+3 over x^2-9x+20

Question 907927: for what values of x is the rational expression below undefined?
x+3 over x^2-9x+20
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
for what values of x is the rational expression below undefined?
(x+3) / (x^2-9x+20)
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Factor::
= (x+3)/[(x-4)(x-5)]
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Undefined when the denominator is zero.
Ans:: x = 4 or x = 5
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Cheers,
Stan H.
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