Question

lim x->-2+ (x-1)/(x^3+2x^2)

How to solve this? :S

Answer 1

Oh we're not approaching an infinite limit, that was stupid of me :D lololol ignore me blahhhhhhhh
Sorry let me put my brain back in XD

Answer 2

what's
\[\lim_{x \rightarrow -2} x ^{3} +2x ^{2}\]

Answer 3

you there?

Answer 4

thats 0

Answer 5

so zero in the denom.; if the numerator has a non-zero limit, you'll have an infinity.

Answer 6

will it be heading to negative or positive infinity?

Answer 7

how can i know that :S

Answer 8

the numerator is negative, right?

Answer 9

yes

Answer 10

check the denominator to the right side of -2, if it's positive, then you've got a negative/positive and the infinity is negative...

Answer 11

hmmm how can i know den is positive or negative lol

Answer 12

is x^2(x+2) positive or negative for values just to the right of x=-2?
-1.75? -1.999?

Answer 13

hey, can i just do this?