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Homework Help: Calculus Local extrema

  1. Feb 3, 2010 #1
    how can i find the x-coordinates of all local extrema in this equations please anyone could answer it for me?

    f(x)=x^3+4x^2+2x

    f(x)=x^4-3x^2+2x

    f(x)=x^5-2x^2-4x

    f(x)=x^5+4x^2-4x
     
  2. jcsd
  3. Feb 3, 2010 #2

    Mark44

    Staff: Mentor

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