Question

limit of (4x^2 -1)/(x+2) as x approaches -infinity?

pls show all work
thanks in advance

Answer 1

do you know l'hopital/s rule?

Answer 2

i'm not very experienced in limits but i think it can be done this way

Answer 3

if we plug in x = - inf the result is - infinity / - infinity which is indeterminate
l'hopitals rule requires you to differentiate top and bottom of the fraction
the limit of this = limit of the original function