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OpenStudy (anonymous):
Find all numbers for which the rational expression is undefined r^3-7r/r^2-25 i got r= ±25
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OpenStudy (anonymous):
its is undefined when the bottom = 0 so set the bottom equal to zero and solve
OpenStudy (anonymous):
oh so its ±5
OpenStudy (anonymous):
yup good job
OpenStudy (anonymous):
lol one step ahead of myself thanks
OpenStudy (anonymous):
np
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