\(\dfrac{\sqrt{x}+2}{\sqrt{x}},\dfrac{\sqrt{x}}{\sqrt{x}-3}-\dfrac{6\sqrt{x}-9}{x-3\sqrt{x}}\)

dặt P= B:A so sanh P vơi 2

\(\dfrac{\sqrt{x}}{\sqrt{x}-3}-\dfrac{6\sqrt{x}-9}{x-3\sqrt{x}}\)

\(\dfrac{\sqrt{x}}{\sqrt{x}-3}-\dfrac{6\sqrt{x}-9}{x-3\sqrt{x}}\)va \(\dfrac{\sqrt{x}+2}{\sqrt{x}}\)

rut gon

dat P=B:A so sanh voi 2

tim gi tri nguyen cua x de P≤\(\dfrac{1}{2}\)

\(\sqrt{x-2}+\sqrt{4x-8}-\dfrac{1}{2}\sqrt{9x-18}\)

\(7-\sqrt{x^2-8x+16}=5\)

\(7-\sqrt{x^2-8x+16}=5\)

\(\sqrt{2-x}+\sqrt{4x-8}-\dfrac{1}{2}\sqrt{9x-18}\)

\(\sqrt{3-2\sqrt{2}}\)

\(\dfrac{\sqrt{22}}{\sqrt{11}}+\sqrt{8}-\dfrac{7\sqrt{2}}{3-\sqrt{2}}\)

rút gon b\(\dfrac{x-\sqrt{x}+12}{x-9}-\dfrac{3}{\sqrt{x}-3}\)