## Algebra 2 Common Core

Published by Prentice Hall

# Chapter 4 - Quadratic Functions and Equations - 4-8 Complex Numbers - Practice and Problem-Solving Exercises: 20

#### Answer

$7+4i$

#### Work Step by Step

Combine the two like terms out of the three total: $9i$ and $-5i$. That gives you $4i$. Then, use your other term, $7$, in the final answer: $7+4i$.

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