新版GRE数学复习重要考点:Term

所属专题:GRE数学重要考点  来源:    要点:GRE考试  
编辑点评: 新GRE数学考试的难度有所增加,但是只要大家认真准备,掌握了基本的知识,还是可以在原有的水平上考出出色的分数的。本文为大家整理汇总了新GRE数学考试的复习要点,希望对大家的复习有所帮助。

本文为大家介绍的GRE数学复习考点是“Term”。

新版GRE数学复习重要考点:Term

A product of coefficients and any number of variables with exponents is called a term. Terms that have the same variables with identical exponents for each variables are called like terms.

Example:

3x,axy,4x2yz are terms. 3x+2 is not term: it is a sum of two terms.

3x2y and 7x2y are like terms since both have the same variables x and y with identical exponents: 2 for x and 1 for y.

Remember:

There cannot be any addition or subtraction in a single term.

Since multiplication is associative, rearrangements of variables does not change a term:3xy is same as 3yx.

3x2y and 7xyx are like terms.

以上的内容大家一定要好好掌握,在考试的时候发挥出自己应有的水平。 

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