Question

Simplify the expression below as much as possible. (8 + 9i) + (5 - 91) - (8 - 7i)

Answer 1

Answer:

B. 5 + 7i

General Formulas and Concepts:

Pre-Algebra

• Distributive Property

Algebra I

• Combining Like Terms

Algebra II

• Complex Standard Form: a + bi
• Imaginary Numbers

Step-by-step explanation:

Step 1: Define expression

(8 + 9i) + (5 - 9i) - (8 - 7i)

Step 2: Simplify

1. Distribute negative:                     8 + 9i + 5 - 9i - 8 + 7i
2. Combine like terms:                    5 + 7i