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一元二次方程根的判别式是初中数学学习的重点,是解数学题的重要工具,也是各地中考的必考知识点,它是等式与不等式相联系的重要桥梁,若能在解题过程中正确巧妙的运用,就能给人一种简单
The discriminant of the quadratic equation root is the key to mathematics learning in junior high school. It is an important tool for solving mathematics problems. It is also a necessary examination point for local examinations. It is an important bridge linking equations and inequalities. If it can solve the problem, The correct and clever use of it can give people a simple