Question

3|x + y|^2 - (xy)^2. if x = 3 and y = -5

Answer 1

Answer:

-213

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

Step-by-step explanation:

Step 1: Define

3|x + y|² - (xy)²

x = 3

y = -5

Step 2: Evaluate

1. Substitute:                    3|3 - 5|² - (3(-5))²
2. Multiply:                        3|-2|² - (-15)²
3. Exponents:                   3|-2|² - 225
4. Absolute Value:           3(2)² - 225
5. Exponents:                   3(4) - 225
6. Multiply:                        12 - 225
7. Subtract:                       -213