Respuesta :

The sum of the complex number  12 – 5i and –3 + 4i is 9 - i

How to sum complex number?

The sum of 12 – 5i and –3 + 4i can be done as follows:

Therefore,

12 - 5I + (-3 + 4i)

12 - 5i - 3 + 4i

Hence,

combine like terms

12 - 3 - 5i + 4i

Finally,

9 - i

learn more on complex number: https://brainly.com/question/10373914

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