Simplify x3+27x2−9⋅x−3x2−3x+9\frac{x^3+27}{x^2-9} \cdot \frac{x-3}{x^2-3x+9}x2−9x3+27⋅x2−3x+9x−3.
111
x+3x+3\frac{x+3}{x+3}x+3x+3
x−3x−3\frac{x-3}{x-3}x−3x−3
x+3x−3\frac{x+3}{x-3}x−3x+3