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Math Help - Real roots

  1. #1
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    Real roots

    If a,b,c,d,e are real numbers such that a(x^2)+(b+c)x+(c+d)=0 has real roots greater than 1, show that
    a(x^4)+b(c^3)+c(x^2)+dx+e=0
    has at least one real roots.
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  2. #2
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    Is that c^3 or x^3 in the second formula?
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  3. #3
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    sory,the second formula should be
    a(x^4)+b(x^3)+c(x^2)+dx+e=0
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  4. #4
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    ... and is that c+d or d+e in the first formula?
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