会计考友 发表于 2012-8-15 12:55:17

新GRE数学要点:Algebraic Fraction

Algebraic Fraction   An algebraic fraction is division of one polynomial by another. An algebraic fraction can be simplified by canceling the common factors between the numerator and denominator.  Example:
  (x2-a2)/(x-a)=(x+a)*(x-a)/(x-a)=(x+a).
  (x2-3x+2)/(x-1)=(x-2)(x-1)/(x-1)=(x-2).
  Factor out both the numerator and denominator to find the common factors.
  由于美国数学基础教育的难度增加导致数学考试越来越难,但新gre数学复习考点都是高中时候学到的知识点,考生不要过于紧张,把基本概念弄明白,再记住一些新版gre数学必备的词汇,那么相信新版gre数学应该没有问题。
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