Simplify: \ac3x2−6xx2−4\ac{3x^2 - 6x}{x^2 - 4}\ac3x2−6xx2−4 (assume xeq 2x eq \ 2xeq 2).
\ac3xx+2\ac{3x}{x+2}\ac3xx+2
\ac3xx−2\ac{3x}{x-2}\ac3xx−2
3x3x3x
x+2x+2x+2