Các câu sau tương tự luôn nha
\(\sqrt{2x+5}=\sqrt{1-x}\)
Đk: \(\left\{{}\begin{matrix}2x+5\ge0\\1-x\ge0\end{matrix}\right.\) \(\Rightarrow\left\{{}\begin{matrix}x\ge-\dfrac{5}{2}\\x\le1\end{matrix}\right.\)
\(\sqrt{2x+5}=\sqrt{1-x}\)
\(2x+5=1-x\)
\(3x=-4\)
\(x=-\dfrac{4}{3}\)