Answers
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉
Recommended
【数学】覚えておいて損はない！？差がつく裏ワザ
11434
87
【数学】中3公式まとめ
1264
7
Users viewing this question
are also looking at these questions 😉
3行目
✖{a+(b+2)}{(a-(b+2)}
◎{a+(b+2)}{a-(b+2)}