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绝对值是例中代数中的重点内容,也是复习的难点,化解有关绝对值问题的关键是去绝对值符号.根据题目的不同特点,常采用以下几种不同的方法.一、运用绝对值的概念
Absolute value is an important part of the algebra in the example, and it is difficult to review. The key to solving the problem of absolute value is to go to the absolute value symbol. According to the different characteristics of the title, the following different methods are often used. First, the use of absolute value concept