Hockeypro1127
04.04.2020 •
Mathematics
15. Simplify. (6 + 5i)(10 – 15i)
A. 135 – 40i
B. 60 – 40i + 75
C. 60 – 40i – 75i2
D. 81 + 50i
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Ответ:
c) 60-40i-75i^2
Step-by-step explanation:
first you multiply out the brackets then collect like terms to get the answer
Ответ:
60- 90i +50i - 75i2
60- 40i -75i2
Answer is C
Ответ: