\[(p - 1)x^{2} + (p - 2)x + 3p - 1 < 0\]
\[При\ p > 1;D < 0:\]
\[D = (p - 2)^{2} - 4(p - 1)(3p - 1) =\]
\[= p^{2} - 4p + 4 - 4\left( 3p^{2} - 3p - p + 1 \right) =\]
\[= p^{2} - 4p + 4 - 12p^{2} + 16p - 4 =\]
\[= - 11p^{2} + 12p;\]
\[- 11p^{2} + 12p < 0\]
\[- 11p\left( p - \frac{12}{11} \right) < 0\]
\[11p\left( p - \frac{12}{11} \right) > 0\]
\[p < 0\ (не\ подходит);\ \ \ \]
\[p > \frac{12}{11}.\]
\[Ответ:при\ p > 1\frac{1}{11}.\]