初二的因式分解题,(3m-2n)*3+(3m+2n)*3
问题描述:
初二的因式分解题,(3m-2n)*3+(3m+2n)*3
答
(3m-2n)*3+(3m+2n)*3
=3*(3m-2n+3m+2n)
=3*6m
=18m