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Math Help - algebra 2 complex standard form

  1. #1
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    Exclamation algebra 2 complex standard form

    i need someone to solve these for me i have no idea how to do them:

    number one: -8 - (3+2i)-(9-4i)


    number two: (3+2i)+(5-i)+6i


    number three: 5i(3+2i)(8+3i)


    PLEASE HELP ME ITS IMPORTANT!!!!! THANK YOU (:!
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  2. #2
    MHF Contributor Drexel28's Avatar
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    Quote Originally Posted by Adrueeeex3 View Post
    i need someone to solve these for me i have no idea how to do them:

    number one: -8 - (3+2i)-(9-4i)


    number two: (3+2i)+(5-i)+6i


    number three: 5i(3+2i)(8+3i)


    PLEASE HELP ME ITS IMPORTANT!!!!! THANK YOU (:!
    What have you done so far? Maybe a way to think about it that would be easier is think of the i's as variables.

    So if I said to expand and simplify 5x(3+2x)(8+3x) would that be easy?
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