1-m^2-2n+n^2因式分解
问题描述:
1-m^2-2n+n^2因式分解
答
1-m²-2n+n²
=(n²-2n+1)-m²
=(n-1)²-m
=[(n-1)+m][(n-1)-m]
=(n-1+m)(n-1-m)