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Thread: Solve x⁴+ x³ + x² + x + 1 = 0

  1. March 20th 2010, 11:37 AM #1
    feyomi
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    Solve x⁴+ x³ + x² + x + 1 = 0

    Solve x⁴+ x³ + x² + x + 1 = 0
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  2. March 20th 2010, 11:42 AM #2
    icemanfan
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    f(x) = x^4 + x^3 + x^2 + x + 1 has no real roots.
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  3. March 20th 2010, 12:03 PM #3
    chiph588@
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    Quote Originally Posted by feyomi View Post
    Solve x⁴+ x³ + x² + x + 1 = 0
    x^5-1 = (x-1)(x^4+x^3+x^2+x+1)

    All roots of x^5-1 are 5^{th} roots of unity...
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« Solving the equation from hell | [SOLVED] Need help with a few questions »

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