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kolezko [41]
3 years ago
6

Please help this ones pretty easy just not sure how to do it

Mathematics
1 answer:
BARSIC [14]3 years ago
3 0

Answer:

-8i + 51

Step-by-step explanation:

(3+5i)(2-9i)

6+10i-18i-45i²

**i² = -1.

6-8i + -45(-1)

= -8i + 51

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