simultaneous linear equations in two unknowns

The branch of algebra that deals with quadratic equations.

二次方程式论处理二次方程式的代数学的分支

a curve or surface whose equation (in Cartesian coordinates) is of the second degree.

方程式是二次方程式的曲线或表面。

Roger can solve quadratic equations as easy as falling off a log.

罗杰能轻而易举地解二次方程式。

a branch of algebra dealing with quadratic equations.

有关二次方程式的代数分支。

X2+3X+2=12 is a quadratic equation.

X2+3X+2=12是一个二次方程式。

Of or relating to geometric surfaces that are defined by quadratic equations.

二次曲面的由二次方程式所定义的几何平面的，或与其有关的

an equation of the first [second] degree

一 [二] 次方程式

A Solution to Three Types Continuance Linear Even Differential Equation of Two Times Complete Cubic;

二次方三项式线性齐次微分方程的解法

Solutions of Three New Second-order Quadratic Differential Equations and Their General Solution Formula;

新三类二阶二次微分方程的解法及其通解公式

General Solutions to Some Kinds of Secord-Order Quadratic Equations;

几类二阶二次微分方程的解法及其通解公式

Properties of Solutions of the Third Order Polynomial-like Iterative Equation and Generalization of Functional Equations for the Square Root Spiral;

三次多项式型迭代方程解的性质与二次螺线根方程的推广

a biquadratic equation [ root ]

四次方程式[乘根]

Teaching of Word Problems on the Application of Quadratic Equations Based on the Schema Theory;

基于图式理论的一元二次方程应用题教学研究

The Formula of Particular Solution to 2-order Linear Inhomogeneous Differential Equation with Constant Coefficients;

二阶常系数线性非齐次方程的特解公式

Special Integral Form of Order 2 Constant Coefficient Innomogeneous Linear Differential Equation;

二阶常系数非齐次线性微分方程特解形式

A method for second order linear differential equation with constant cofficients;

二阶常系数非齐次线性微分方程的公式解

The Solution of Two Variables Non-homogeneous Ordinary Differential Equation with Constant Coefficients

二阶非齐次常系数微分方程解的表达式

A cubic expression, curve, or equation.

三次表达式，三次曲线，三次方程