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OpenStudy (anonymous):
factor the top and it looks like you might be able to cancel t+2 in the denominator
OpenStudy (anonymous):
is it 0?
OpenStudy (anonymous):
you can do it throw a chart if you want to do it that way
OpenStudy (anonymous):
is the limit 0?
OpenStudy (anonymous):
Just do polynomial division! t+2 is a factor of t^3+8 because -2 is a zero of t^3+8
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OpenStudy (anonymous):
And then you just plug in t=-2 in the quadratic polynomial you get.
OpenStudy (anonymous):
I did, i got 0.
OpenStudy (anonymous):
12
OpenStudy (anonymous):
is the answer.
OpenStudy (anonymous):
\[\lim_{t \rightarrow -2} t^2-2t+4\]
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OpenStudy (anonymous):
btw correct term would be long division =P lol
OpenStudy (anonymous):
(x^3 +y^3)=(x+y) (x^2 -xy + y^2)
t^3+8 is t^3 +2^3
(t+2)(t^2-2t+4) /(t+2) = (t^2-2t+4) provided t not equal to -2
as t gets close to -2 but is not equal to -2, the expression gets closer to 12.
OpenStudy (anonymous):
if you want to be real smart call it polynomial long division if you have to get it right -.-