# Chapter 2 - Section 2.1 - Complex Numbers - Concept and Vocabulary Check - Page 314: 4

$14i$

#### Work Step by Step

Use the rule $a-(-b) = a+b$ to obtain: $=10i+4i$ Simplify by using the distributive property $ac+bc=(a+b)c$ to obtain: $\\=(10+4)i \\=14i$

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