a) ĐK: \(x\ge3\)
PT \(\Leftrightarrow5\sqrt{x-3}+\sqrt{x-3}=2\sqrt{x-3}+8\)
\(\Leftrightarrow4\sqrt{x-3}=8\) \(\Leftrightarrow\sqrt{x-3}=2\) \(\Leftrightarrow x=7\left(TM\right)\)
Vậy \(x=7\)
b) ĐK: \(x\ge-\frac{1}{2}\)
PT \(\Leftrightarrow\sqrt{x^2-2x+10}=1+2x\)
\(\Leftrightarrow x^2-2x+10=1+4x+4x^2\)
\(\Leftrightarrow3x^2+6x-9=0\) \(\Leftrightarrow\left[{}\begin{matrix}x=1\\x=-3\left(loại\right)\end{matrix}\right.\)
Vậy \(x=1\)