amaliacat4 amaliacat4

18-05-2020
Mathematics

contestada

(7i)(3i) help please

Respuesta :

ahuacatitankevi ahuacatitankevi

18-05-2020

Answer:

-21i

Step-by-step explanation:

[tex]i^{2}[/tex] = -1

7*3=21

21 x -1 = -21

Answer Link

rpulber59 rpulber59

18-05-2020

Answer:

-21

Step-by-step explanation:

Answer Link

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