作业帮规定运算:a★b=-3ab-1,求:(1)2★(-3) (2)[(-3)★2] ★(-1)
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/02 15:17:10
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规定运算:a★b=-3ab-1,求:(1)2★(-3) (2)[(-3)★2] ★(-1)
规定运算:a★b=-3ab-1,求:(1)2★(-3) (2)[(-3)★2] ★(-1)
规定运算:a★b=-3ab-1,求:(1)2★(-3) (2)[(-3)★2] ★(-1)