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一元二次方程是初中数学的重要内容,巧妙地构造一元二次方程,可以解决许多难度较大的竞赛题.现以竞赛题为例,介绍构造一元二次方程的常用方法.
The one-level quadratic equation is an important part of junior high school mathematics. Ingeniously constructing a one-dimensional quadratic equation can solve many difficult competition problems. Taking the contest as an example, the common method for constructing a one-dimensional quadratic equation is introduced.