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anonymous

  • 5 years ago

how about this one: \[(3-6i)^{2}\]

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  1. anonymous
    • 5 years ago
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    -27 -36i

  2. anonymous
    • 5 years ago
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    45 - 36i

  3. anonymous
    • 5 years ago
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    Second one is right :D

  4. anonymous
    • 5 years ago
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    you have a choice but the easiest thing is just multiply out \[(3-6i)(3-6i)=9-36i+36i^2=9-36i-36=-27-36i\]

  5. anonymous
    • 5 years ago
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    Lol, I got it right the first time. Thanks satellite :D

  6. anonymous
    • 5 years ago
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    think you missed this daniel or else i am very tired. (also true)

  7. anonymous
    • 5 years ago
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    No, I missed it. I second guessed myself and came up stupidly :D

  8. anonymous
    • 5 years ago
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    oh i didn't see first one was you as well. sorry.

  9. anonymous
    • 5 years ago
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    I was wrong. You were right. Simple as that :D Good catch satellite :D

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spraguer (Moderator)
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