(((13+3i)(13+3i)(17+3i)=

Ответ:

(13+3i)(13+3i)(17+3i)=(169+39i+39i+9i²)(17+3i)=

=(169+78i-9)(17+3i)=(160+78i)(17+3i)=2720+480i+1326i+234i²=

=2720+1806i-234=2486+1806i

Пошаговое объяснение:

i=√-1

i²=√-1*√-1=-1