问题
填空题
把多项式5xy-3x3y2-5+x2y3按字母x降幂排列是:______.
答案
5xy-3x3y2-5+x2y3按字母x降幂排列是:-3x3y2+x2y2+5xy,
故答案为:-3x3y2+x2y2+5xy.
把多项式5xy-3x3y2-5+x2y3按字母x降幂排列是:______.
5xy-3x3y2-5+x2y3按字母x降幂排列是:-3x3y2+x2y2+5xy,
故答案为:-3x3y2+x2y2+5xy.