Rgọn : ( \(\frac{x+2}{x\sqrt{x}+1}\)- \(\frac{1}{\sqrt{x}+1}\)).\(\frac{4\sqrt{x}}{3}\) đk:x#0 x #1 x>0
= \(\frac{x+2-\left(x-\sqrt{x}+1\right)}{\left(\sqrt{x}+1\right)\left(x-\sqrt{x}+1\right)}\).\(\frac{4\sqrt{x}}{3}\)
= \(\frac{\sqrt{x}+1}{\left(\sqrt{x}+1\right)\left(x-\sqrt{x}+1\right)}\),\(\frac{4\sqrt{x}}{3}\)
= \(\frac{4\sqrt{x}}{3\left(x-\sqrt{x}+1\right)}\)