[" If "alpha,beta" are the roots of "x^(...

[" If "alpha,beta" are the roots of "x^(2)+ax+b=0" then maximum value of "-(x^(2)+x^(2)+4)1],[[" 1) "(a^(2)-4b)/(4)," 2) "(b^(2)-4a)/(4)," 3) "0," (4) "]]

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