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解二元二次方程组的基本思想是“转化” ,转化的主要手段是“消元”和“降次” ,即通过消元或降次 ,将方程组转化为一元二次方程或二元一次方程组来解 .但由于这种类型的方程组题型较多 ,因而解题方法较灵活 .所以在解这类方程组时 ,要认真分析各个方程的结构特征 ,选择较为恰?
The basic idea of solving binary quadratic equations is “transformation”. The main means of transformation are “elimination of the yuan” and “decreasing times”. That is, by eliminating the yuan or descending, the equations can be converted into a quadratic equation or binary A system of equations to solve. But because of this type of equations more questions, so the method of solving the problem is more flexible. So when solving this type of equations, we must carefully analyze the structural characteristics of each equation, the choice is more accurate?