A=$\frac{(\sqrt{x}+1)(\sqrt{x}+2)+2\sqrt{x}(\sqrt{x}-2)-5\sqrt{x}-2}{(\sqrt{x}+2)(\sqrt{x}-2)}$
A=$\frac{x+3\sqrt{x}+2+2x-4\sqrt{x}-5\sqrt{x}-2}{(\sqrt{x}+2)(\sqrt{x}-2)}$
A=$\frac{3x-6\sqrt{x}}{(\sqrt{x}+2)(\sqrt{x}-2)}$
A=$\frac{3\sqrt{x}(\sqrt{x}-2)}{(\sqrt{x}+2)(\sqrt{x}-2)}$
A=$\frac{3\sqrt{x}}{\sqrt{x}+2}$