lucygooseybz lucygooseybz

30-10-2021
Mathematics

contestada

please explain how to solve this
(12+5i) - (9-2i)
i have answers but dont understand

Respuesta :

janedoe2007 janedoe2007

30-10-2021

Answer: 3 + 7i

Step-by-step explanation:

Equation expanded: 12 + 5i - 9 + 2i // now simplfy

12 - 9 = 3

5i + 2i = 7i

// together, we get

3 + 7i

Answer Link

isabel1186 isabel1186

30-10-2021

Answer:

10i

Step-by-step explanation:

(12+5i) - (9-2i)

(17i) - (7i)

10i

Answer Link

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