Answer:
[tex](-\infty,-4)\cup(8,\infty)[/tex]
Step-by-step explanation:
All real numbers on its own in interval notation is [tex](-\infty,\infty)[/tex], but if we are to exclude -4 and 8, then we would need two separate intervals joined in union.
Thus, [tex](-\infty,-4)\cup(8,\infty)[/tex] would be the correct notation
