Working on a ACT practice problem with my son.
In the equation x^2 + px + k = 0, p and k are integers. The only possible value for x is 4. What is the value of p?
I think the fact that it says p and k are integers are key to solving this problem, I just can't figure out why. Does it have something to do with the fact that p = m + n and k = m * n?
What kind of problem is this so we can study further?