$\text{A = }$$(\dfrac{1}{\sqrt{x} + 3})$ - $(\dfrac{4}{9 - x})$ . $(\dfrac{2\sqrt{x} - 6}{\sqrt{x} + 1})$$\\$$\text{A = }$$(\dfrac{1}{\sqrt{x} + 3}$ + $\dfrac{4}{(\sqrt{x} + 3)(\sqrt{x} - 3)})$ . $(\dfrac{2\sqrt{x} - 6}{\sqrt{x} + 1})$$\\$$\text{A = }$$\dfrac{\sqrt{x}-3 + 4}{(\sqrt{x} + 3)(\sqrt{x} - 3)}$ . $\dfrac{2\sqrt{x}-6}{\sqrt{x} -1}$$\\$$\text{A = }$$\dfrac{\sqrt{x}-1}{(\sqrt{x} + 3)(\sqrt{x} - 3)}$ . $\dfrac{2(\sqrt{x}- 3)}{\sqrt{x}+1}$$\\$$\text{A = }$$\dfrac{2(\sqrt{x}-1)}{(\sqrt{x} + 3)(\sqrt{x} + 1)}$
