Question

[Khánh Linh]

ai đó giúp em đc k ah em cmon nhieeuuuu lắmm

Answer 1

[Nguyễn Minh Quang]

ta có :

\(\left(\frac{x\sqrt{x}-3\sqrt{3}x}{x-27}+\frac{x^3-x^2+x}{3\sqrt{3}x+x\sqrt{x}}\right):\frac{x^2+1}{\sqrt{x}+3\sqrt{3}}\)

\(\Leftrightarrow\left(\frac{x\left(\sqrt{x}-3\sqrt{3}\right)}{\left(\sqrt{x}-3\sqrt{3}\right)\left(\sqrt{x}+3\sqrt{3}\right)}+\frac{x^2-x+1}{3\sqrt{3}+\sqrt{x}}\right):\frac{x^2+1}{\sqrt{x}+3\sqrt{3}}\)

\(\Leftrightarrow\frac{x+x^2-x+1}{\sqrt{x}+3\sqrt{3}}:\frac{x^2+1}{\sqrt{x}+3\sqrt{3}}=\frac{x^2+1}{\sqrt{x}+3\sqrt{3}}:\frac{x^2+1}{\sqrt{x}+3\sqrt{3}}=1\)

Vậy ta có điều phải chứng minh