Question

lim as x approaches 3 of x^3-2x^2-9/x^2-2x-3

Answer 1

try to factorize numerator and denominator.

Answer 2

They left hartnn :(

Answer 3

you'll notice that there is a common factor that gets cancelled from both neumerator and denominator.
then you can simply put x =3 in whatever remains :)

Answer 4

yes, that was for anyone who finds this question through googling.