化简:(1+m)^2-(1-m)^2的结果是____.

化简:(1+m)^2-(1-m)^2的结果是____.
化简:(1+m)^2-(1-m)^2的结果是____.

化简:(1+m)^2-(1-m)^2的结果是____.
:(1+m)^2-(1-m)^2
=(1+m+1-m)(1+m-1+m)
=2×2m
=4m;
手机提问的朋友在客户端右上角评价点【满意】即可.

原式=(1+m+1-m)(1+m-1+m)
=2×2m
=4m
望采纳