化简(a²-2ab-b²）-（2a²-2b²）+3ab
来源：学生作业帮助网 编辑：六六作业网 时间：2024/10/06 12:18:30
化简(a²-2ab-b²）-（2a²-2b²）+3ab化简(a²-2ab-b²）-（2a²-2b²）+3ab化简(a&#
化简(a²-2ab-b²）-（2a²-2b²）+3ab
化简(a²-2ab-b²）-（2a²-2b²）+3ab
化简(a²-2ab-b²）-（2a²-2b²）+3ab
(a²-2ab-b²）-（2a²-2b²）+3ab
=a²-2ab-b²-2a²+2b²+3ab
=-a^2+ab+b^2
(a²-2ab-b²）-（2a²-2b²）+3ab
=a²-2ab-b²-2a²+2b²+3ab
=-a²+ab+b²