$PT\Leftrightarrow 4x^2+x+3+2x=4\sqrt{x^2(x+3)}+2\sqrt{2x-1}$$\Leftrightarrow 4x^2+x+3+2x=4x\sqrt{x+3}+2\sqrt{2x-1}$
$\Leftrightarrow 4x^2-4x\sqrt{x+3}+x+3+2x-1-2\sqrt{2x-1}+1=0$
$\Leftrightarrow (2x+\sqrt{x+3})^2+(\sqrt{2x-1}-1)^2=0$
đến đây tự lm nhé