Find the x value for all maxima and minima of f(x) if:

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  1. remember that max/mins occur when f ' (x) equal zero.
    Since your f ' (x) is already nicely factored, all we have to do is set each of the factors equal to zero and solve, so

    the x's that yield a max/min are
    x = 7, -3, 8, and -27

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  2. thank you

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