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If alpha = (-b+ (sqrt(b^(2) - 12c))/(k) ...

If `alpha = (-b+ (sqrt(b^(2) - 12c))/(k) and beta = (-b - sqrt(b^(2) - 12c))/(k)`
be two roots of the quadratic equation `3x^(2) + bx + c = 0`, then value of 3k is

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