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