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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
Some quadratic equations have no real roots. 某些二次方程没有实数根。
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。
Most quadratic equations have two different solutions. 大部分二次方程式都有两个不同的解.
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
X2+3X+2=12 is a quadratic equation. X2+3X+2=12是一个二次方程式。
The relationship between the dielectric constant and density of the material may be described by quadratic equations. 密度与介电常量的关系可用二次方程序表示。
Example 1: Solve the following quadratic equations, leave the answers in surd form. 例1：解下列的二次方程，如果需要，以根式表示。
Ability to apply advanced mathematical concepts such as exponents, logarithms, quadratic equations, and permutations. 在工作中能运用高等数学概念，如指数，对数，二次方程式和排列。
They enjoy a good philosophical debate, parse sentences for fun and conquered quadratic equations when most children were reading Ladybird books. 当大多数孩子们正阅读瓢虫类的书籍时，他们却喜欢哲学辩论，乐于句法分析，善解二次方程。
But different from of Al-Khw arizmi,when the coefficient of quadratic equations is irrational number, Abu Kamil abandoned the geometry demonstration. 但是，与花拉子米不同，《代数书》中的几何证明，直接应用了欧几里得《原本》中的命题，只是在遇到具有无理系数的二次方程时，不得不放弃几何证明，这样一来，倒使得艾布·卡米勒的代数学具有了明显的算术化趋势。
The solution of this set of quadratic equations is a set of orthonormal vectors, which makes the equations more easily solved. 具体使用这个判据时，虽然也要解方程组，但该方程组是一个二次齐次方程组，而且其解有较好对称性，因此该判据对很多态都可方便地使用。
Usually, x is a quadratic equation, x has two different solutions. 二次方程式通常都有两个不同的解.
A quadratic equation usually has two different solutions. 二次方程式通常都有两个不同的解.
And based on these results the expressions for some binary indefinite quadratic equations integer solutions are obtained. 并且利用其结果得到了几类二元二次不定方程的整数解表达式。
This paper is a report of a teaching experiment on word problems on quadratic equations with one unknown based on the theory of schemas a. 基于当代认知心理学有关应用题解答的研究成果，笔者选择了样例学习理论和图式理论作为研究依据，就一元二次方程应用题进行了一项教学实验。
When the coefficients of quadratic equations were irrational numbers, Abu Kdmil abandoned the geometry demonstration showing the trend of arithmetization. 而且，当遇到具无理系数的方程时，作者放弃了几何证明，具有明显的算术化趋势。
You take a text-book and make them learn it. So far, so good. The child then knows how to solve a quadratic equation. 给学生一本书就让他们学，这样就万事大吉了。于是学生就会解二次方程了。
The acquisition of the power of solving a quadratic equation is part of the process of sharpening the mind. 学习解二次方程就是塑造头脑这个工具的一部分。
The simulation equation was obtained by applying quadratic equation to the relation of decomposition surplus and time of the organ of D. borbcsus. 应用二次方程对小叶龙竹各器官分解剩余量与分解时间的关系进行拟合得出模拟方程。