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新gre数学重要考点知识Algebraic Expression

信息来源:网络  发布时间:2012-01-04

  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.
 

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