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新版gre数学复习Term部分

校园5.89K

新gre考试实施以来,不仅对写作部分茫然不知所措,就连我们所擅长的.数学也甚是担忧,相信这其中的原因还是由于考生在新gre数学复习时没有把基础打牢。如果新版gre数学基本考点都没有复习到,如何能拿到分数呢?所以说,想要新版gre数学考好,复习的时候一定要把基本概念和重要考点都弄扎实。

新版gre数学复习Term部分

今天针对新版gre数学复习,给大家整理的是关于Term的相关内容,这些概念在考试中一定会考到的。希望考生能再接再厉,取得一个好成绩,突破新版gre数学难的困境。

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.