1. The problem statement, all variables and given/known data find the value of k such that the limit exists. lim xgoes to infinity (x^3-6)/(x^k+3). 2. Relevant equations 3. The attempt at a solution I multiply both sides by 1/x^3 I get 1 in the numerator and x^k/x^3 in the denominator. I don't know what to next.