Bài 1 : Rút gọn các bt sau :
b, B=\(\dfrac{x-\sqrt{x}}{1-\sqrt{x}}\) - \(\dfrac{x\sqrt{x}}{\sqrt{x}}\)
c, C= \(\dfrac{x+2\sqrt{x}}{\sqrt{x}-x}\) - \(\dfrac{x\sqrt{x}}{\sqrt{x}+1}\)
d, D= \(\dfrac{x+2\sqrt{x}}{\sqrt{x}+2}\)+ \(\dfrac{5\sqrt{x}-2}{x-4}\) ( x> 0 ; x#4)
e, E= \(\dfrac{\sqrt{x}}{\sqrt{x}-3}\)+ \(\dfrac{\sqrt{x}-24}{x-9}\) ( x>0; x#9)
f, F= \(\dfrac{3}{\sqrt{x}+5}\) + \(\dfrac{20-2\sqrt{x}}{x-25}\)( x>0; x#25)
Mấy bạn làm giúp mk vs ... thanks trc ạ