plot[1-2.5x^2+1.5x^3+1-2.5(x-1)^2-1.5(x-1)^3+2-4(x+1)+2.5(x+1)^2-0.5(x+1)^3+2-4(2-x)+2.5(2-x)^2-0.5(2-x)^3,x=0..1]

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