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Thread: Solving a Quintic Equation

  1. February 12th 2009, 04:35 PM #1
    runner940
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    Solving a Quintic Equation

    Please help me solve this equation for zero...

    3r^5-15r^3-18r=0
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  2. February 12th 2009, 04:36 PM #2
    mr fantastic
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    Quote Originally Posted by runner940 View Post
    Please help me solve this equation for zero...

    3r^5-15r^3-18r=0
    3r (r^4 - 5r^2 - 6) = 0 \Rightarrow 3r (r^2 - 6)(r^2 + 1) = 0 \, ....
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