3x^2 - 2x - 3 = 0;

D = b^2 - 4ac;

a = 3; b = -2; c = -3;

D = (-2)^2 - 4 * 3 * (-3) = 4 + 36 = 40;

x1 = (-b + √D)/2a = (2 + √40)/2 * 3 = (2 + 2√10)/2 * 3 = (1 + √10)/3;

x2 = (-b - √D)/2a = (2 - √40)/2 * 3 = (2 - 2√10)/2 * 3 = (1 - √10)/3.