Add or subtract.
-7i + (-2 - i)
A)2 - 6i
B)-2 + 6i
C)2 - 8i
D)-2 + 8i

Name: Add or subtract. -7i + (-2 - i) A)2 - 6i B)-2 + 6i C)2 - 8i D)-2 + 8i
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Question

Quizplus · Accepted Answer

To add complex numbers, we need to add their real parts and imaginary parts separately. In this case, the real part of -2 stays the same, and only the imaginary parts need to be added:

7i + (-2 - i) = -2 + 7i - i = -2 + 6i

Therefore, the answer is B, -2 + 6i.

Add or Subtract. -7i + (-2 - I)