Question

6/(x - 3sqrt(x)) * 6/(x - 9)

Answer 1

\(\dfrac{6}{x-3\sqrt{x}}\cdot\dfrac{6}{x-9}=\dfrac{6\cdot6}{\left(x-3\sqrt{x}\right)\left(x-9\right)}\)

\(=\dfrac{36}{\sqrt{x}\left(\sqrt{x}-3\right)^2\cdot\left(\sqrt{x}+3\right)}\)

Answer 2

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

\(=\dfrac{6}{\sqrt{x}\left(\sqrt{x}-3\right)}\cdot\dfrac{6}{\left(\sqrt{x}-3\right)\left(\sqrt{x}+3\right)}\)

\(=\dfrac{36}{\sqrt{x}\left(\sqrt{x}-3\right)^2\left(\sqrt{x}+3\right)}\)