Answer
0, 6
Work Step by Step
Since the coefficient of the squared term is one, we know that the expression must factor to:
$$ (n\pm a)(n\pm b)$$
Here, we see that a and b must multiply to get $0$ and add to get $-6$. Thus, we find that the solution is:
$$(n+0)(n-6)$$
Thus, setting each factor equal to zero, we find that the solutions are:
$$0,6$$