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二次根式是初中代数的重要内容,其中的概念和性质都有条件限制,同学们在运用这些概念和性质解题时,往往会忽视这些条件而导
The secondary root formula is an important content of junior high school algebra. The concept and nature of it are conditionally limited. When students use these concepts and the nature to solve problems, they often ignore these conditions and guide them.