分解因式m^2+2m-6n-9n^2=

来源:学生作业帮助网 编辑:作业帮 时间:2024/08/07 07:10:27
分解因式m^2+2m-6n-9n^2=
x){b⧳<ӟgmkkgdkTW^Ά b`![ijijIm# 嵍4m 젶ۀ9XPS64ka06|n&D"Blk8@ǀ#Rs

分解因式m^2+2m-6n-9n^2=
分解因式m^2+2m-6n-9n^2=

分解因式m^2+2m-6n-9n^2=
m^2+2m-6n-9n^2
=m^2-9n^2+2m-6n
=(m+3n)(m-3n)+2(m-3n)
=(m-3n)(m+3n+2)

m^2+2m-6n-9n^2
=m²+2m+1-(9n²+6n+1)
=(m+1)²-(3n+1)²
=(m+3n+2)*(m-3n)