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Find The Area Enclosed By The X-axis And The Curve Y=(x-4)(x-2)(x+2)?

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    The area enclosed over the region of interest will be the definite integral of this expression over the region of interest. The integral of
    y = 16 - 4x - 4x^2 + x^3

    is
    g[x] = Integral[y] = 16x - 2x^2 - (4x^3)/3 + x^4/4

    If the region of interest is x = {-2, 2}, the area evaluates to
    g[2] - g[-2] = (52/3 - (-76/3)) = 128/3.

    Please take a look at the picture.
    0 1

    Oddman 

    answered 9 months ago

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