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23 February, 00:50

How do I solve this? (5+i) (4-2i)

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  1. 23 February, 01:14
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    (5 + i) (4 - 2i)

    20 - 10i + 4i - 2i²

    20 - 6i - 2 (-1)

    20 - 6i + 2

    20 + 2 - 6i

    22 - 6i
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