(m²-6mn+9n²)÷(m-3n)-(4m²-9n²)-(2m-3n)怎么做

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/11 00:44:21
(m²-6mn+9n²)÷(m-3n)-(4m²-9n²)-(2m-3n)怎么做
x)US645{2}{:ru@ L%Tͳ';;6βI*ҧv6`50jxqFڍr`ŚX8U\]<<;P(ʷQ

(m²-6mn+9n²)÷(m-3n)-(4m²-9n²)-(2m-3n)怎么做
(m²-6mn+9n²)÷(m-3n)-(4m²-9n²)-(2m-3n)怎么做

(m²-6mn+9n²)÷(m-3n)-(4m²-9n²)-(2m-3n)怎么做
(m²-6mn+9n²)÷(m-3n)-(4m²-9n²)÷(2m-3n)
=(m-3n)^2÷(m-3n)-(2m+3n)(2m-3n)÷(2m-3n)
=m-3n-(2m+3n)
=-m-6n