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(-3+7i)(1-2i) can you help me with the answer to this
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11 votes
(-3+7i)(1-2i) can you help me with the answer to this

User Loo
by
4.6k points

1 Answer

7 votes

Answer:

11 + 13i

Explanation:

A must know is that


√(i) = - 1

Complex numbers

1st: foil the equations


- 3(1 - 2i) + 7i(1 - 2i)


- 3 + 6i + 7i- 14 {i}^(2)

2nd Combine like terms and substitute


i ^(2) for \: - 1


- 3 + 14 + 13i


11 + 13i

User Tommaso Pasini
by
3.8k points
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