ashleyblue439 ashleyblue439

23-04-2021
Mathematics

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(4-i)(2+5i) simplify

Respuesta :

saraalvi00 saraalvi00

23-04-2021

Answer: 13+18i

Step-by-step explanation:

(4-i)(2+5i)

8+20i-2i-5(i)^2

as we know that i^2=-1

8+18i-5(-1)

8+18i+5

13+18i

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