Simplify: \ac102x+4\ac{10}{2x + 4}\ac102x+4.
\ac5x+2\ac{5}{x + 2}\ac5x+2
\ac5x+4\ac{5}{x + 4}\ac5x+4
\ac52x+2\ac{5}{2x + 2}\ac52x+2
\ac10x+2\ac{10}{x + 2}\ac10x+2