Question 1082227
*[illustration gg11.JPG].
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Integrate from {{{x=-1}}} to {{{x=3}}},
{{{A=int(((4x+2)-(x^2+2x-1)),dx,x=-1,3)}}}
{{{A=int((-x^2+2x+3),dx,x=-1,3)}}}

{{{A=-x^3/3+x^2+3x+C}}}
{{{A=-3^3/3+3^2+3(3)-(-(-1)^3/3+(-1)^2+3(-1))}}}
{{{A=-27/3+9+9+(-1/3-1+3)}}}
{{{A=-27/3+54/3-1/3-3/3+9/3}}}
{{{A=32/3}}}