\(choP=\left(1-\dfrac{\sqrt{x}}{\sqrt{x}+1}\right):\left(\dfrac{\sqrt{x}+3}{\sqrt{x}-2}-\dfrac{\sqrt{x}+2}{3-\sqrt{x}}+\dfrac{\sqrt{x}+2}{x-5\sqrt{x}+6}\right)..a,tìmdkxd..b,rút.gọn.P..c,tính.P.khi.x=4-2\sqrt{3}..d,tìm.x.để.P>0..e,tìm.x.để.P< \dfrac{1}{2}\)

\(\sqrt{4,5x}+\sqrt{50x}-\sqrt{32x}+\sqrt{72x}-5\sqrt{\dfrac{x}{2}}\)-12=0

\(\dfrac{3\sqrt{x}-5}{2}-\dfrac{2\sqrt{x}-7}{3}+1=\sqrt{x}\)

tìm x

\(2\sqrt{9x-27}-\dfrac{1}{5}\sqrt{25x-75}-\dfrac{1}{7}\sqrt{49x-147}=20\)

\(\dfrac{2+\sqrt{5}}{\sqrt{2}+\sqrt{3+\sqrt{5}}}+\dfrac{2-\sqrt{5}}{\sqrt{2}-\sqrt{3-\sqrt{5}}}\)

\(\dfrac{\sqrt{2}-1}{\sqrt{2}+2}-\dfrac{2}{2+\sqrt{2}}+\dfrac{\sqrt{2}+1}{\sqrt{2}}\)