\(\sqrt{4x^2-20x+25}+2x=\sqrt{\left(2x-5\right)^2}+2x=\left|2x-5\right|+2x=5\)
\(+,x< \frac{5}{2}\Rightarrow2x-5< 0\Rightarrow\left|2x-5\right|+2x=5-2x+2x=5\Leftrightarrow5=5\left(ld\right)\)
\(+,x\ge\frac{5}{2}\Rightarrow2x-5\ge0\Rightarrow\left|2x-5\right|=2x-5\Rightarrow\left|2x-5\right|+2x=4x-5=5\Leftrightarrow x=\frac{5}{2}\left(tm\right)\)
\(Vay:x\le\frac{5}{2}\)