1. Stating the problem: Simplify the expression $3 - 3 \times 3 - 3^2$.
2. Recall the order of operations (PEMDAS/BODMAS):
- Exponents first
- Then multiplication and division from left to right
- Finally addition and subtraction from left to right
3. Calculate the exponent:
$$3^2 = 9$$
4. Substitute back into the expression:
$$3 - 3 \times 3 - 9$$
5. Perform the multiplication:
$$3 - \cancel{3 \times 3} 9 - 9$$
6. Simplify the expression:
$$3 - 9 - 9$$
7. Perform subtraction from left to right:
$$3 - 9 = -6$$
8. Then:
$$-6 - 9 = -15$$
Final answer: $-15$
Simplify Expression De1Fd7
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