Rút gọn

A=\(\left(\dfrac{3}{\sqrt{1+x}}+\sqrt{1-x}\right):\left(\dfrac{3}{\sqrt{1-x^{ }}^2}+1\right)\)

Rút gọn A=\(\left(\dfrac{\sqrt{x}}{3+\sqrt{x}}+\dfrac{9+x}{9-x}\right).\left(3\sqrt{x}-x\right)\)

Rút gọn

A=\(\left(\dfrac{5\sqrt{x}-6}{x-9}-\dfrac{2}{\sqrt{x}+3}\right):\left(1+\dfrac{6}{x-9}\right)\)

Rút gọn

A=\(\left(\dfrac{1}{\sqrt[]{x}-3}+\dfrac{2\sqrt{x}}{x-9}\right)\dfrac{2\sqrt{x}+6}{\sqrt{x}-1}\)

Rút gọn

A=\(\left(\dfrac{4}{\sqrt{x}-1}-\dfrac{\sqrt{x}-2}{x-3\sqrt{x}+2}\right).\left(\dfrac{\sqrt{x}-1}{x^2}\right)\)

Rút gọn

A=\(\left(\dfrac{\sqrt{x}}{3+\sqrt{x}}+\dfrac{9+x}{9-x}\right)\left(3\sqrt{x}-x\right)\)

B=\(\left(\dfrac{3}{\sqrt{1+x}}+\sqrt{1-x}\right):\left(\dfrac{3}{\sqrt{1-x}^2}+1\right)\)