DOUBLE'M! [MIT Integration Bee 2016]

[@cdkw2]

Me when I mentally prepare to do the integral

[@maxvangulik1988]

roots: -1,0,1 I=(-int[-4,-1]+int[-1,0]-int[0,1]+int[1,4])(x^3-x)dx I=(x^4/4-x^2/2)|[-4,...,4] I=f(4)-2f(1)+2f(0)-2f(-1)+f(-4) f(-x)=f(x) f(0)=0 I=2f(4)-4f(1) I=2(64-8)-4(1/4-1/2) I=128-16+2-1 I=113