[tex](\frac{2x}{2x^{2}-5x+3} - \frac{5}{2x-3}) : (3 + \frac{2}{1-x})
= (\frac{2x}{2x^{2}-2x-3x+3}- \frac{5}{2x-3}) : (\frac{3(1-x)}{1-x}+\frac{2}{1-x})
= (\frac{2x}{(2x-3)(x-1)}-\frac{5(x-1)}{(2x-3)(x-1)}): \frac{5-3x}{1-x}
=\frac{5-3x}{(2x-3)(x-1)} : \frac{-(5-3x)}{x-1}
= \frac{1}{3-2x}[/tex]
ĐKXĐ: [tex]x \neq \frac{3}{2}; x\neq 1[/tex]