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[" If "a,beta,gamma,delta" are the roots of the equation "x^(*)-Kx^(2)+Kx^(2)+Ux+M=0" ,where "K,L" 8.M are real nuy "],[" then the minimum value of "a^(2)+beta^(2)+r^(2)+8" is "-n" .Find the value of "n" ."]

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