化简(a²-2ab-b²)-(2a²-2b²)+3ab
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/11 04:16:45
![化简(a²-2ab-b²)-(2a²-2b²)+3ab](/uploads/image/z/1746934-70-4.jpg?t=%E5%8C%96%E7%AE%80%28a%26%23178%3B-2ab-b%26%23178%3B%EF%BC%89-%EF%BC%882a%26%23178%3B-2b%26%23178%3B%EF%BC%89%2B3ab)
x){3D5eCsk]$$N{:Rqm$"}
tPj;lӅІ@(M3NLN3/.H̳:̡3" @H XɍC
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