5
AssignmentMultiple Choice

Operations with Complex Numbers

Question 5 • Fall 24 GMS Advanced Algebra: Concepts and Connections A

What is the additive inverse of –2 + 8i?

Answer
A
2 + 8i
B
–2 – 8i
C
2 – 8i
D
–2 + 8i

Explanation

The additive inverse of a number is the value that adds to it to make 0. Negate both parts of –2 + 8i, giving 2 – 8i. Indeed, (–2 + 8i) + (2 – 8i) = 0, so the answer is 2 – 8i.

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