Oblique Linear Asymptotes (disgusting way)

[shut prism]

does anybody in the wold use this method of finding bc , I dont really know how to use it 100% correctly

the big problem is when Im finding k and I have +-infinity(???)
and I get to the part where I need to know what this is
x->+-inf
what is +-inf and how do I calculate with it ?

[heady ravine]

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