Question

Find the value of 2a2 + 5b2 when a = -6 and b = 2

Answer 1

92

General Formulas and Concepts:

Pre-Algebra

• Order of Operations: BPEMDAS

Explanation:

Step 1: Define

2a² + 5b²

a = -6

b = 2

Step 2: Evaluate

1. Substitute: 2(-6)² + 5(2)²
2. Exponents: 2(36) + 5(4)
3. Multiply: 72 + 20
4. Add: 92