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对于某些二次根式的问题,如果从已知条件的二次根式或待求的二次根式的结构特点出发,可用一些超常规方法来解。往往会收到事半功倍之效。1.完全平方公式法。
For some quadratic problems, some supernormal methods can be used to solve the problem from the quadratic root of the known condition or the structural characteristic of the secondary root to be solved. Will often receive a multiplier effect. 1. Complete square formula method.