问题
解答题
把多项式4x2y-5xy2+x3-y3按y的升幂排列得:______.
答案
按y的升幂排列为:
4x2y-5xy2+x3-y3=x3+4x2y-5xy2-y3.
故答案为:x3+4x2y-5xy2-y3.
把多项式4x2y-5xy2+x3-y3按y的升幂排列得:______.
按y的升幂排列为:
4x2y-5xy2+x3-y3=x3+4x2y-5xy2-y3.
故答案为:x3+4x2y-5xy2-y3.