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kicyunya [14]
3 years ago
12

(4-i)(2+5i) simplify

Mathematics
1 answer:
melamori03 [73]3 years ago
8 0

Answer:  13+18i

Step-by-step explanation:

(4-i)(2+5i)

8+20i-2i-5(i)^2

as we know that  i^2=-1

8+18i-5(-1)

8+18i+5

13+18i

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