5
QuizMultiple Choice

Performing Operations with Complex Numbers

Question 5 • MO-Algebra II A-CR

What is the sum of 15 – 6i and –2 + 9i?

Answer
A
13 + 3i
B
17 + 3i
C
24 – 147i
D
24 + 147i

Explanation

Add the real parts and the imaginary parts separately: 15 + (−2) = 13, and −6i + 9i = 3i. The sum is 13 + 3i, which is choice A.

AI-written and checked against the verified answer.

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