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03-04-2020
Mathematics

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perform the operation (1-2i)-(7+4i)

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Officialalehpeter Officialalehpeter

03-04-2020

Answer:

-6(1+i)

Step-by-step explanation:

Let's open the bracket

(1-2i)-(7+4i)

Open the bracket first

(1-2i)-7-4i

1-2i-7-4i

Collect like terms

1-7-2i-4i

-6-6i

Let's factorise

-6(1+i)

So the final answer is

-6(1+i)

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