Simplify: \acx2−4x2+4x+4\ac{x^2 - 4}{x^2 + 4x + 4}\acx2−4x2+4x+4.
\acx−2x+2\ac{x-2}{x+2}\acx−2x+2
\acx+2x−2\ac{x+2}{x-2}\acx+2x−2
1
x−2x-2x−2