It's (a-b)²= a²-2ab+b² not (a-b)²= a²-2ab-b²It's not a important error but it was bothering me... ┑(￣Д ￣)┍
thats how it was in the korean version too
It's (a-b)²= a²-2ab+b² not (a-b)²= a²-2ab-b²
It's not a important error but it was bothering me... ┑(￣Д ￣)┍