5555555~谁能因式分解这个算式(2m-3n)*(2m-3n)-2m+3n=?
问题描述:
5555555~谁能因式分解这个算式(2m-3n)*(2m-3n)-2m+3n=?
答
(2m-3n)*(2m-3n)-(2m-3n)=(2m-3n)*(2m-3m-1)
答
(2m-3n)*(2m-3n)-2m+3n
=(2m-3n)*(2m-3n)-(2m-3n)
=(2m-3n)(2m-3n-1)