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配方法是一种对数学式子进行定向变形的技巧,这种配成“完全平方”的恒等变形,使式子的结构发生了变化,从中可以找到已知与未知之间的联系,促成问题的解决．
The method of matching is a technique of orienting and deforming math formulas. Such an equal deformation of “complete square” changes the structure of the formula, and can find the connection between known and unknown, Problem solving.