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[" If "alpha,beta" are roots of "ax^(2)+bx+c=0" then "],[(1)/(a^(3))+(1)/(beta^(3))=],[[" 1) "(3abc-b^(3))/(a^(3))," 2) "(3ab-b^(3))/(a^(2)c)],[" 3) "(3abc-b^(3))/(c^(3))," 4) "(b^(2)-2ac)/(ac)]]

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