Multiply and simplify: (1 - 5i)(1 -2i)

Keith Prussing asked Feb 11, 2022

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23 votes

Multiply and simplify:
(1 - 5i)(1 -2i)

Keith Prussing asked Feb 11, 2022

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18 votes

Answer:

-9-7i

Explanation:

1) Use the FOIL Method : (a+b)(c+d)=ac+ad+bc+bd

1-2i-5i-10

2) Collect Like Terms

(1-10)+(-2i-5i)

3) Simplify

-9-7i

MUFC answered Feb 17, 2022

by MUFC

2.8k points

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