3x²(x-y)+6x(y-x)

来源:学生作业学帮网 编辑:学帮网 时间:2024/05/31 01:08:10

3x²(x-y)+6x(y-x)

原式=3x²(x-y)-6x(x-y)
=3x(x-y)(x-y-2)

3x*x(x-y)-2*3x(x-y)=3x*(x-y)(x-2)