Question

find end behavior using limits.
f(x)=(x-1)(x+3)(x+4)

Answer 1

(x-1)(x+3)(x+4) expands out to some cubic polynomial

since you're only interested in the end behavior, you can just focus on the leading term, which is x^3

(x-1)(x+3)(x+4) and x^3 will have the same end behavior

Answer 2

let me know if that hint helps or not