(m+n)二次方×(n-m)怎么算 求解答啊 化简

2025-06-26 20:54:48
推荐回答(1个)
回答1:

(m+n)^2(n-m)
=(n+m)(n+m)(n-m)
=(n-m)*(n+m)^2
=(n^2-m^2)*(n+m)
=n^3+(n^2)m-n(m^2)-m^3