(x^2 - 3x) : (x^3 - 3x^2 + 9x - 27) = (x(x - 3)) : (x(x^2 - 3x + 9)) = (x(x - 3)) : (x(x - 3)(x - 3)) = 1 : (x - 3)
(x^2 - 3x) : (x^3 - 3x^2 + 9x - 27) = (x(x - 3)) : (x(x^2 - 3x + 9)) = (x(x - 3)) : (x(x - 3)(x - 3)) = 1 : (x - 3)