一元二次不等式
quadratic inequality in one variable An inequality of the form $ax^2 + bx + c > 0$ (or
lt;$, $\ge$, $\le$), where $a \neq 0$.CSCA 数学 考试术语
quadratic inequality in one variable An inequality of the form $ax^2 + bx + c > 0$ (or
lt;$, $\ge$, $\le$), where $a \neq 0$.CSCA 数学 考试术语