Đáp án:
Giải thích các bước giải:
$\color{lavender}{\frac{3x}{x-2}-\frac{x}{x-5}+\frac{2x^2}{7x-10-x^2}=0\\\Leftrightarrow (x-2)(x-5)(-x^2+7x-10)(\frac{3x}{x-2}-\frac{x}{x-5}+\frac{2x^2}{7x-10-x^2})=0\\\Leftrightarrow 13x^3-91x^2+130=0\\\Leftrightarrow x(13x^2-91x+130)=0\\\Leftrightarrow \left[\begin{array}{l}x=0\\x=5\\x=2\end{array}\right.\\\Leftrightarrow x=0}$