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Math Help - Solve and discuss in R...equation of second degree

  1. #1
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    Solve and discuss in R...equation of second degree

    following the values of parametric m ,solve and discuss in R the following equations , where x is unknown :
    1)x^2+(m-1)x-m=0
    2)3x^2-13mx+10m^2=0
    3)(m-4)x^2-2(m-l)x+m+1=0
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  2. #2
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    Re: Solve and discuss in R...equation of second degree

    Quote Originally Posted by lebanon View Post
    following the values of parametric m ,solve and discuss in R the following equations , where x is unknown :
    1)x^2+(m-1)x-m=0
    2)3x^2-13mx+10m^2=0
    3)(m-4)x^2-2(m-l)x+m+1=0
    These are all Quadratic Equations. Have you tried the Quadratic Formula?

    On that note, exactly what HAVE you tried?
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  3. #3
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    Re: Solve and discuss in R...equation of second degree

    yeah i know the formula , but not with parameter m , when m is known
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  4. #4
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    Re: Solve and discuss in R...equation of second degree

    This is, after all, algebra! You are allowed to replace numbers with letters. Use the quadratic formula with, for the first example, a= 1, b= m-1, c= -m.
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