Answer:
-15
Explanation:
Order of Operations: BPEMDAS
1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction
Left to Right
Step 1: Write expression
3² - 3 · [(5² - 9) ÷ 2]
Step 2: Brackets Parenthesis Exponents
3² - 3 · [(25 - 9) ÷ 2]
Step 3: Brackets Parenthesis Subtraction
3² - 3 · [16 ÷ 2]
Step 4: Brackets Division
3² - 3 · 8
Step 5: Exponents
9 - 3 · 8
Step 6: Multiplication
9 - 24
Step 7: Subtraction
-15