Question

Evaluate A^2-B^2 for A = 3 and B = -4

A.) -7
B.) -2
C.) 25

Answer 1

A.) -7

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Explanation:

Step 1: Define

A² - B²

A = 3

B = -4

Step 2: Evaluate

1. Substitute: 3² - (-4)²
2. Exponents: 9 - 16
3. Subtract: -7