多项式3x^m y^n+2 +1\7x^m-1 y^n+1因式分解的结果是?

问题描述:

多项式3x^m y^n+2 +1\7x^m-1 y^n+1因式分解的结果是?

3x^m y^n+2 +1\7x^m-1 y^n+1
=1/7x^(m-1)y^(n+1)(21xy+1)