dasialv03 dasialv03

14-02-2020
Mathematics

contestada

what is (5+2i)⋅(−5−i)

Respuesta :

Natharazy Natharazy

16-02-2020

Answer: (-27i - 15)

Step-by-step explanation:

By expanding,

(5 + 2i).(-5 - i)

= -25 - 5i - 10i - 2

= -25-2- 5i - 10i

= -27 - 15i..

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