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14 November, 18:09

How do you solve (3+7i) (2-5i) and put it in standard form?

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  1. 14 November, 18:28
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    41 - i

    Step-by-step explanation:

    note that i² = - 1

    Given

    (3 + 7i) (2 - 5i) ← expand the factors using FOIL

    = 6 - 15i + 14i - 35i² ← collect like terms

    = 6 - i + 35

    = 41 - i ← in standard form
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