只含有一个未知数(一元),并且未知数项的最高次数是2(二次)的整式方程叫做一元二次方程。一元二次方程经过整理都可化成一般形式ax²+bx+c=0(a≠0)。其中ax²叫作二次项,a是二次项系数;bx叫作一次项,b是一次项系数;c叫作常数项。
叫做一元二次方程 quadratic equation in one unknown
一元二次方程式 quadratic equation of one variable
一元二次方程的整数根 Junior Middle School Students
二元一次方程 linear equation in two unknowns
一元二次方程的根 The root of equation of two degree
叫二元一次方程 linear equation of two unknowns
二元一次方程式 Binary equation ; first degree in two variable equation
对于二元一次不定方程 For the binary indeterminate equation
联立二元一次方程 Simultaneous Linear Equations
叶面积消长动态符合一元二次方程变化曲线;
The dynamics of leaf area accorded with the curves of second-order equation.
镉累积释放量与淋溶量的关系可用一元二次方程描述。
The relation between the cumulative release amount of cadmium with the leaching amount could be described with mono basic quadratic equation.
从前求一元一次方程和一元二次方程的根,要求输入方程的系数,数据间逗号或空格分隔,输出方程的根。
Once upon, slover the root equation of a degree and equation of two degree that need input coefficient of equation, data separate need comma or space, output the root equation.
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