论文部分内容阅读
在学习同类项时,要做到如下几点: 一、会识别同类项在理解同类项概念的基础上,准确地掌握识别同类项的两个标准:(1)所含字母相同;(2)相同字母的指数也分别相同. 例1说出下列各题的两个单项式是不是同类项?为什么?
When learning similar items, the following points must be made: 1. Identifying similar items On the basis of understanding the concept of similar items, two criteria for identifying similar items are accurately grasped: (1) The same letters are included; (2) The index of the same letter is also the same. Example 1 tells whether the two mononomials of the following questions are the same items and why?