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jennag

  • 3 years ago

Help finding the complex zeros of a function! F(x)=x^4+2x^3+46x^2+98x-147

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  1. myininaya
    • 3 years ago
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    147=3*7*7 --------------- 147=21(7) 147=3(49) Try using synthetic division with the following values x=+ or - {1,3,7,21,49,147}

  2. jennag
    • 3 years ago
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    Ok, so does it matter what I chose to divide by?

  3. myininaya
    • 3 years ago
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    It doesn't matter where you start but if you don't get the remainder zero you can throw the number you tried out.

  4. jennag
    • 3 years ago
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    Perfect!!! Thanks for your assistance you rock!!!

  5. myininaya
    • 3 years ago
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    Np. I like to at least try to guess ones that are more possible than others and try those because that is a lot to try. lol

  6. jennag
    • 3 years ago
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    Ok, I did them all, and found there were no complex zeros do you think that's correct!

  7. myininaya
    • 3 years ago
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    Nope. :(

  8. jennag
    • 3 years ago
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    Oh man, I was looking at the wrong numbers, I'm redoing my math now :-) one second and ill send what I found :-)

  9. jennag
    • 3 years ago
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    Okay, -3, and 1 :-)

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