Subtracting Complex Numbers: (-3 + 4i) - (5 + 2i)
This article explains how to subtract complex numbers. We'll use the example of (-3 + 4i) - (5 + 2i).
Understanding Complex Numbers
Complex numbers have a real part and an imaginary part. They are written in the form a + bi, where:
- a is the real part.
- b is the imaginary part.
- i is the imaginary unit, where i² = -1.
Subtracting Complex Numbers
To subtract complex numbers, we subtract the real parts and the imaginary parts separately.
Here's how to subtract (-3 + 4i) - (5 + 2i):
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Distribute the negative sign: (-3 + 4i) - (5 + 2i) = -3 + 4i - 5 - 2i
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Combine the real parts: -3 - 5 = -8
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Combine the imaginary parts: 4i - 2i = 2i
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Write the final answer: -8 + 2i
Therefore, (-3 + 4i) - (5 + 2i) = -8 + 2i.