对某些二次根式的化简,若按常规方法往往比较繁琐,但若能从题目本身的特点出发,巧妙地运用所学的数学知识和数学方法,则能化难为易,使复杂问题得到简捷明快的解答。现举几例加以说明,供大家参考。 As for the simplification of certain secondary roots, it is often cumbersome to use conventional methods. However, if we can proceed from the characteristics of the topic itself and skillfully use the mathematical knowledge and mathematical methods we learn, we can make it difficult to understand and make complicated problems easier to obtain. Simple and clear answer. Here are some examples to illustrate for your reference.