Simplify: x2+2xx2+4x+4\frac{x^2 + 2x}{x^2 + 4x + 4}x2+4x+4x2+2x
xx+2\frac{x}{x+2}x+2x
x2\frac{x}{2}2x
x+2x\frac{x+2}{x}xx+2
xxx