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Mathematics 9 Online
OpenStudy (anonymous):

find all numbers for which the rational expression is undefined y²-y-5 -------- y²-13y+40

OpenStudy (anonymous):

5 and 8

OpenStudy (anonymous):

plz show your work i dont understand the answer

OpenStudy (anonymous):

see any rational expression is undefined whenever its denominator becomes zero

OpenStudy (anonymous):

so essentially this question asks for the zeroes of the denominator, if any

OpenStudy (anonymous):

thats what i did...i calculated the zeroes of the denominator, 5 and 8

OpenStudy (anonymous):

ok so y=5,8

OpenStudy (anonymous):

yeah..get it?

OpenStudy (anonymous):

i think so

OpenStudy (anonymous):

neither is neg right?

OpenStudy (anonymous):

myininaya (myininaya):

hey tina did you ever finished that addition on two fractions from earlier?

OpenStudy (anonymous):

yes

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