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Mathematics 18 Online
OpenStudy (anonymous):

what are all the values that make the expression undefined? 13/7x

OpenStudy (anonymous):

\[\frac{ 13 }{ 7x }=13 \div 7x\] what can't you divide by?

OpenStudy (anonymous):

what makes it undefined?

OpenStudy (anonymous):

what number are you not allowed to divide by?

OpenStudy (anonymous):

except... in a black hole.

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