\[x³ - 2x² + 3x - 2 = 0\]
\[P(1) = 1^{3} - 2 \bullet 1^{2} + 3 \bullet 1 - 2 =\]
\[= 1 - 2 + 3 - 2 = 0\]
\((x - 1)\left( x^{2} - x + 2 \right) = 0\)
\[x - 1 = 0\]
\[x = 1.\]
\[x^{2} - x + 2 = 0\]
\[D = ( - 1)^{2} - 4 \bullet 1 \bullet 2 =\]
\[= 1 - 8 = - 7 < 0 \Longrightarrow\]
\[\Longrightarrow нет\ решения.\]
\[Ответ:\ \ 1.\]