2m(m+n)=4m(2m+3n)

问题描述:

2m(m+n)=4m(2m+3n)

2m(m+n)=4m(2m+3n)
2m²+2mn=8m²+6mn
6m²+4mn=0
m(3m-2n)=0
m=0或m=2n/3是因式分解……因式分解怎么会有等号?2m(m+n)+4m(2m+3n)=2m²+2mn+8m²+6mn=10m²+8mn=2m(5m+4n)