3.5×6-6.5×6-2列递等式计算?

2025-06-26 18:27:50
推荐回答(2个)
回答1:

递等式计算过程方法如下
解:3.5×6-6.5×6-2
=21-39-2
=21-(39+2)
=21-41
=-20

回答2:

原式
=21-39-2
=21-(39+2)
=21-41
=-20