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1 January, 12:02

Simplify (9 - 5i) - (4 + 10i).

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Answers (2)
  1. 1 January, 12:31
    0
    (9-5i) - (4+10i) =

    you put like terms together ... so 9 and 4 and 5i and 10i.

    (9-4) + (-5i+10i) = 5 + 5

    =10
  2. 1 January, 13:49
    0
    Move the 9 and four into the same set of parenthesis, doing the same for 5i and 10i.

    (9-4) - (10i - 5i) Just subtract as needed and viola.

    Have a great day.
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