\(\sqrt{12-x}-3+\sqrt[3]{x+24}-3=0\)
Liên hợp sẽ có:
\(\frac{3-x}{\sqrt{12-x}+3}+\frac{x-3}{\sqrt[3]{x+24}+3}=0\)
\(\Leftrightarrow\left(x-3\right)\left(\frac{1}{\sqrt[3]{x+24}+3}-\frac{1}{\sqrt{12-x}+3}\right)=0\)
\(\Rightarrow\hept{\begin{cases}x-3=0\\\left(\frac{1}{\sqrt[3]{x+24}+3}-\frac{1}{\sqrt{12-x}+3}\right)=0\end{cases}}\)
\(\Rightarrow x=3\)