Which expression is equivalent to x3−27x2−9\frac{x^3 - 27}{x^2 - 9}x2−9x3−27?
x+3x + 3x+3
x−3x - 3x−3
x−3x+3\frac{x - 3}{x + 3}x+3x−3
x2+3x+9x+3\frac{x^2 + 3x + 9}{x + 3}x+3x2+3x+9