a²-2ab+b²+2a²+2ab-b²合并同类项
来源:学生作业帮助网 编辑:作业帮 时间:2024/10/03 21:11:57
a²-2ab+b²+2a²+2ab-b²合并同类项
a²-2ab+b²+2a²+2ab-b²合并同类项
a²-2ab+b²+2a²+2ab-b²合并同类项
a²-2ab+b²+2a²+2ab-b²
=(a²+2a²)+(-2ab+2ab)+(b²-b²)
=3a²
a²-2ab+b²+2a²+2ab-b²=3a²
a²-2ab+b²+2a²+2ab-b²合并同类项
a²-2ab+b²+2a²+2ab-b²合并同类项
a²-2ab+b²+2a²+2ab-b²合并同类项
a²-2ab+b²+2a²+2ab-b²
=(a²+2a²)+(-2ab+2ab)+(b²-b²)
=3a²
a²-2ab+b²+2a²+2ab-b²=3a²