Question

tính rồi rút gọn

A=\((\frac{\sqrt{x}}{\sqrt{x}+1}+\frac{1}{\sqrt{x}})\times\frac{x+\sqrt{x}}{\sqrt{x}}\)

B=\(\frac{\sqrt{x}}{\sqrt{x}+3}+\frac{2\sqrt{x}}{\sqrt{x}-3}-\frac{3x+9}{x-9}\)

C=\((\frac{x+\sqrt{x}+10}{x-9}-\frac{1}{\sqrt{x}-3}):\frac{1}{\sqrt{x}-3}\)