math (9)

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Find the area of the region enclosed by these graphs and the vertical lines x = 0 and x = 3
f(x)=-x^2+2x+4 g(x)=-x+4

  • math (9) -

    ʃ (-x^2+ 2x+ 4)-(-x+4)

    ʃ (-x^2 +3x )dx

    -x^3/3 + 3x^2/2 from 0 to 3
    -(3)^3/3 +3(3)2/2 -0
    -9 + 27/2
    = 92

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