ĐKXĐ: \(x\ge0\)
\(4x^2-1+\sqrt{3x}-\sqrt{x+1}=0\)
\(\Leftrightarrow\left(2x-1\right)\left(2x+1\right)+\dfrac{2x-1}{\sqrt{3x}+\sqrt{x+1}}=0\)
\(\Leftrightarrow\left(2x-1\right)\left(2x+1+\dfrac{1}{\sqrt{3x}+\sqrt{x+1}}\right)=0\)
\(\Leftrightarrow2x-1=0\) (do \(2x+1+\dfrac{1}{\sqrt{3x}+\sqrt{x+1}}>0\) \(\forall x\ge0\))
\(\Rightarrow x=\dfrac{1}{2}\)