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Mathematics
OpenStudy (anonymous):

I need help with limits! when it's lim (x ² +5x-6) x-->-4 Do you just plug in (-4) to the equation?

OpenStudy (unklerhaukus):

try it

OpenStudy (unklerhaukus):

do you get -10

OpenStudy (anonymous):

Wait I lied, it's lim (-x ²+5x-6) x-->-4

OpenStudy (unklerhaukus):

!!!

OpenStudy (anonymous):

I get -42?

OpenStudy (unklerhaukus):

-42

OpenStudy (unklerhaukus):

You only have trouble with limits when the first time you substitute you get fractions with zeros or infinities

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