3a²b+ab²-2a²b²-3ab²-3a²b+4ab²
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/20 21:17:28
![3a²b+ab²-2a²b²-3ab²-3a²b+4ab²](/uploads/image/z/1268133-69-3.jpg?t=3a%26%23178%3Bb%2Bab%26%23178%3B-2a%26%23178%3Bb%26%23178%3B-3ab%26%23178%3B-3a%26%23178%3Bb%2B4ab%26%23178%3B)
3a²b+ab²-2a²b²-3ab²-3a²b+4ab²
3a²b+ab²-2a²b²-3ab²-3a²b+4ab²
3a²b+ab²-2a²b²-3ab²-3a²b+4ab²
3a²b+ab²-2a²b²-3ab²-3a²b+4ab²
=(3-3)a^2b+(1-3+4)ab^2-2a^2b^2
=2ab^2-2a^2b^2
=2ab^2(1-a)
3a²b+ab²-2a²b²-3ab²-3a²b+4ab²
=(3a²b-3a²b)+(ab²-3ab²+4ab²)-2a²b²
=2ab²-2a²b²
3a²b+ab²-2a²b²-3ab²-3a²b+4ab²
=2ab²-2a²b²
3a²b+ab²-2a²b²-3ab²-3a²b+4ab² =2ab²-2a²b²