ĐKXĐ: \(x\ge0\)
\(\Leftrightarrow2x+2+2\sqrt{x^2-4x+1}-6\sqrt{x}=0\)
\(\Leftrightarrow\left(2x+2-5\sqrt{x}\right)+\left(2\sqrt{x^2-4x+1}-\sqrt{x}\right)=0\)
\(\Leftrightarrow\dfrac{4x^2-17x+4}{2x+2+5\sqrt{x}}+\dfrac{4x^2-17x+4}{2\sqrt{x^2-4x+1}+\sqrt{x}}=0\)
\(\Leftrightarrow\left(4x^2-17x+4\right)\left(\dfrac{1}{2x+2+5\sqrt{x}}+\dfrac{1}{2\sqrt{x^2-4x+1}+\sqrt{x}}\right)=0\)
\(\Leftrightarrow4x^2-17x+4=0\)
\(\Leftrightarrow...\)
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