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一元二次方程是初中数学中的重点,也是中考中必考的一个知识点.从近几年的中考数学试卷中,我们可以发现全国各地出现了很多与一元二次方程有关的新题,为了使同学们能
The one-dimensional quadratic equation is the key point in junior high school mathematics, and it is also a knowledge point in the middle school exam. From the math exam papers in recent years, we can find that there are many new questions related to the one-dimensional quadratic equation across the country. Enable students to