[latex] x^{2} -3x+2 больше 0[/latex]

[latex] x^{2}-3x+2\ \textgreater \ 0\\x_1+x_2= -\frac{b}{a}=3\\x_1x_2= \frac{c}{a}=2\\x_1=2\\x_2=1\\ [/latex]  \\\\\\\\\\\\\\\\\\\\                                  \\\\\\\\\\\\\\\\\\\\\\\\\\ __________.________________._____________           +        1                -              2            +           Ответ: (-∞;1)∪(2;∞)