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[" 22.If "alpha,beta" are the roots of "ax^(2)-26x+c=0" ,then "alpha^(3)beta^(3)+alpha^(2)beta^(3)+alpha^(3)beta^(2)" is equal to "],[[" (a) "(c^(2))/(a^(3))(c+26)," (b) "(c^(2))/(a^(3))(c-26)],[" (c) "(bc^(3))/(a^(3))," (d) None of these "]]

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