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在解一元二次方程有关问题时,常常忽略一些细小的问题,从而导致解题错误,本文举例说明,以引起同学们注意.1.注意二次项系数不为零.例1关于x的一元二次方
When solving a problem related to the quadratic equation, some small problems are often overlooked, which leads to a problem-solving error. This article gives an example to draw the attention of the students. 1. Note that the coefficient of the quadratic term is not zero. Example 1 One-dimensional about x Quadratic