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(2+i)(4-i) Write it out in the form of a + bi Can you guys help me out please?

(2+i)(4-i) Write it out in the form of a + bi Can you guys help me out please?
asked 222k views
2 votes
(2+i)(4-i)

Write it out in the form of a + bi

Can you guys help me out please?

asked
User Koviroli
by
7.9k points

1 Answer

2 votes

Answer:

9+2i

Explanation:

FOIL method, see attached pic

(2+i)(4-i) Write it out in the form of a + bi Can you guys help me out please?-example-1
answered
User Enrico
by
8.3k points
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