计算:::(-3)^m+3(-3)^m-1的值是

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/29 23:58:57
计算:::(-3)^m+3(-3)^m-1的值是计算:::(-3)^m+3(-3)^m-1的值是计算:::(-3)^m+3(-3)^m-1的值是(-3)^m+3(-3)^m-1=(-3)^m-(-3)

计算:::(-3)^m+3(-3)^m-1的值是
计算:::(-3)^m+3(-3)^m-1的值是

计算:::(-3)^m+3(-3)^m-1的值是
(-3)^m+3(-3)^m-1
=(-3)^m-(-3)(-3)^m-1
=(-3)^m-(-3)^m
=0

(-3)^m+3(-3)^m-1
=(-3)(-3)^m-1+3(-3)^m-1
=0

-12m-1