5
QuizMultiple Choice

Performing Operations with Complex Numbers

Question 5 • AL-Precalculus

Daine simplified the expression below. 8(1 + 2i) – (7 – 3i) = 1 + 5iWhat mistake did Daine make?

Answer
A
He did not apply the distributive property correctly for 8(1 + 2i).
B
He did not distribute the subtraction sign correctly for 7 – 3i.
C
He added the real number and coefficient of i in 8(1 + 2i).
D
He multiplied the two complex numbers when he should have subtracted.
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