`\color{#FF0000}{T}\color{#FF7F24}{i}\color{#FFFF00}{t}\color{#7FFF00}{u}\color{#00F5FF}{u}\color{#FF1493}{u}`

`C=(1)/(x^2-\sqrt{x}):(\sqrt{x}+1)/(x\sqrt{x}+x+\sqrt{x}) (x>0; x!=1)`

`=(1)/(\sqrt{x}(x\sqrt{x}-1)).(\sqrt{x}(x+\sqrt{x}+1))/(\sqrt{x}+1)`

`=(1)/((\sqrt{x}-1)(x+\sqrt{x}+1)).(x+\sqrt{x}+1)/(\sqrt{x}+1)`

`=(1)/(x-1)`