新GRE数学全部考点及解析(19).

　　新GRE数学考试要求的是中学的数学知识，考生们对于新GRE数学上面来说还是比较有把握，不过说到具体的GRE数学考点要求就不一定这么清楚。下面就为大家介绍新GRE数学考点及这些GRE数学考点解析，帮助考生们系统的复习一遍新GRE数学，梳理整合新GRE数学考试所需要的知识。

　　GRE考试数学考点：Adding Monomials

　　To add two monomials of the same variables just add the coficients.

　　Only two like monomials can be added together.

　　Example:

　　By adding 3x and 4x, we get (3+4)x=7x.

　　By adding 3xy+2xy, we get (3+2)xy=5xy.

　　By adding as and bx, we get ax+bx=(a+b)x.

　　Remember:

　　Monomials can be added only if they have the same variables with identical powers.

　　GRE考试数学考点：Algebraic Expression

　　One or many terms connected by algebraic operations is called an algebraic expression. The operations between the terms must be valid to yield an expression.

　　Example

　　(3x+5),(ax2+c),and (xy+a)(x+y) are all algebraic expressions.

　　(2x+5)+·(3x) is not an expression since + followed by· is not a valid sequence of operations.

　　Remember

　　There is no=sign in an expression.

　　以上就是新GRE数学考点及GRE数学考点解析的介绍，希望这些知识点的介绍可以帮助大家复习新GRE数学，为大家复习新GRE数学提供条件。希望考生们认真复习新GRE数学考试，能够取得自己理想的成绩。澳际也会不断的为大家分享更多有助于考生们复习考试的新GRE考试材料及技巧。