20ahumphreys 20ahumphreys

06-06-2020
Mathematics

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1. Find the product: (4 + 6i)(7-2i)
a. 11 + 4i
b. 28 - 12i
c. 40 + 34i
d. 62 - 12i

Respuesta :

tatiklisek tatiklisek

06-06-2020

Answer:

c

Step-by-step explanation:

(4 + 6i)(7-2i)=

28-8i+42i-12i^2

i^2=-1, so

28+12-8i+42i

40+34i

answer is c

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