Sbeech7246
18.12.2019 •
Mathematics
Which expression is equivalent to (4 + 7¡)(3 + 4¡)?
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Ответ:
37i-16
Step-by-step explanation:
(4+7i)(3+4i)
12+21i+16i+28i^2
12+37i+28(-1)
37i+12-28
37i-16
Ответ:
27:45
Reduce by dividing by 9:
3:5