\[\boxed{\text{1049\ (1049).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[x^{2} - 2mx + m^{2} - 1 = 0;\ \ \ \]
\[( - 2;4)\]
\[x = \frac{2m \pm \sqrt{4m^{2} - 4 \cdot \left( m^{2} - 1 \right)}}{2} =\]
\[= m \pm 1\]
\[Ответ:\ при\ \ m \in ( - 1;3).\]