$DK: x\ge 2y;y\ne 0$Ta có: $pt(1)\iff \left( \sqrt{x-2y}-2y \right)\left(\sqrt{x-2y}+3y\right)=0$
$DK: x\ge 2y;y\ne 0$Ta có: $pt(1)\iff \left( \sqrt{x-2y}+2y \right)\left(\sqrt{x-2y}+3y\right)=0$
$DK: x\ge 2y;y\ne 0$Ta có: $pt(1)\iff \left( \sqrt{x-2y}
-2y \right)\left(\sqrt{x-2y}+3y\right)=0$