\[\frac{3}{x^{2} + 4x + 4} + \frac{4}{x^{2} - 4} = \frac{1}{x - 2}\]
\[\frac{3}{(x + 2)^{2}} + \frac{4}{(x - 2)(x + 2)} - \frac{1}{x - 2} = 0\]
\[ОДЗ:\ \ x \neq 2;\ \ x \neq - 2.\]
\[3 \cdot (x - 2) + 4 \cdot (x + 2) - (x + 2)^{2} = 0\]
\[3x - 6 + 4x + 8 - x^{2} - 4x - 4 = 0\]
\[- x^{2} + 3x - 2 = 0\]
\[x^{2} - 3x + 2 = 0\]
\[x_{1} + x_{2} = 3;\ \ \ x_{1} \cdot x_{2} = 2\]
\[x_{1} = 2\ (не\ подходит);\ \ x_{2} = 1.\]
\[Ответ:x = 1.\]