Given the inequality;
We can begin by finding the signs of the factors;
We can now identify the intervals that satisfy the required condition "greater than or equal to zero."
This on the number line would now look like;
ANSWER:
Expressing the number;
in set notation;
This means;
"x is a member of the set of integers such that x is less than or equla to negative 3."
The symbol that looks like an "E" means is a member of, the one that looks like a capital Z means set of integers, the slash means "such that...".
We would not use natural numbers because negatives do not occur naturally.