二次根式的化简是初中数学的重要内容之一,也是同学们学习中的难点,在学习中除了掌握“分子、分母同乘以分母的有理化因式”这一种基本方法外,再了解其他一些常用的技巧,对提高解题能力无疑是大有帮助的。现举例介绍二次根式化简的几种常用技巧。 The reduction of the secondary root is one of the important contents of mathematics in junior middle school and also a difficult point for the students to study. In addition to the basic method of learning “the numerator and denominator of the denominator multiplied by the denominator” And then understand some of the other commonly used skills, to improve the ability to solve problems is undoubtedly helpful. Here is an example to introduce the second root simplification of several common techniques.