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Mathematics 22 Online
OpenStudy (anonymous):

for what value(s) of the variable is the expression undefined? x-4/ x^2-2x-8

OpenStudy (saifoo.khan):

Do you know how to factor the denominator?

OpenStudy (anonymous):

no

OpenStudy (saifoo.khan):

Simply factor x^2 - 2x - 8 can you do it?

OpenStudy (anonymous):

no

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