化简:2【(m-1)m+m(m+1)】×【 (m-1)m-m(m+1)】

2025-05-21 01:24:08
推荐回答(1个)
回答1:

2[(m-1)m+m(m+1)]×[(m-1)m-m(m+1)]
=2m(m-1+m+1)×m(m-1-m+1)
=2m²×2m×(-2)
=-8m³