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The number c is a root of a polynomial p, if p=0. An n-th order polynomial has n complex roots. Example: 2 is a root of polynomial p=x-2,since p=2-2=0. 1 is a root of polynomial p=x2-3x+2,since p=12-31+2=0. Remember: A polynomial may not have any real root:p=x2+1 does not have any real root, since p=1 for all real x. 有一部分考生认为新GRE数学具有一定的难度，这其中的原因是由于考生在复习时没有把新GRE数学的基础打牢。想要新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。祝大家都能取得理想成绩! | 
