For 3x^2 - 4(sqrt(3))x + 4 = 0, the discriminant D = b^2 - 4ac determines the nature of the roots. Substituting the values gives D = (-4(sqrt(3)))^2 - 4(3)(4) = 48 - 48 = 0. Because the discriminant is exactly zero, the roots of the quadratic equation are real and equal.