(5y+3x-15z²)-(12y+7x+z²)我要全过程不要去括号后写答案,我还要去括号后的过程,然后在写答案.
问题描述:
(5y+3x-15z²)-(12y+7x+z²)我要全过程不要去括号后写答案,我还要去括号后的过程,然后在写答案.
答
(5y+3x-15z²)-(12y+7x+z²)我要全过程不要去括号后写答案,我还要去括号后的过程,然后在写答案.