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一元二次方程是中考的重要考点之一,考查的内容主要有:(1)一元二次方程的基本概念、解法;(2)一元二次方程根的判别式;(3)一元二次方程根与系数的关系(又称韦达定理);(4)一元二次方程根的判别式和根与系数关系
One quadratic equation is one of the most important test centers in the test. The main contents are as follows: (1) The basic concepts and solution of the quadratic equation; (2) The discriminant of the quadratic equation root; (3) The quadratic equation Roots and Coefficients (also known as Vedon's Theorem); (4) Discriminant and Roots and Coefficients of Roots of a Quadratic Equation