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roots of the equation x^2-2x-3=0 find the roots of the quadratic equation x^2+2x-3=0 if alpha beta are the roots of the equation x^2-2x+3=0 use the graph to find the roots of the equation x^2-2x-3=0 if a b c are roots of the equation x^3-x^2+2x-3=0 what are the coordinates of the roots of the equation 3+2x-x^2=0 x^2+2x+3 roots roots of x^2+2 x^2+2x+2=0 roots
