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(1-5i)(4-2i) Slove with complex numbers please list all steps thank you
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(1-5i)(4-2i) Slove with complex numbers please list all steps thank you

User Edgar Grill
by
5.6k points

1 Answer

2 votes

Answer:


-6-22i

Explanation:


(1-5i)(4-2i)\\\\(1)(4)+(1)(-2i)+(-5i)(4)+(-5i)(-2i)\\\\4-2i-20i+10i^2\\\\4-22i+10(-1)\\\\4-22i-10\\\\-6-22i

Recall that
i^2=-1

User Rafael Ruiz Tabares
by
6.1k points
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