作业帮5ab²-6[3/2a²b-2/3（4a²b+2ab²）]其中a=1,b=-1
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/28 06:54:35
![5ab²-6[3/2a²b-2/3（4a²b+2ab²）]其中a=1,b=-1](/uploads/image/z/2702899-19-9.jpg?t=5ab%26%23178%3B-6%5B3%2F2a%26%23178%3Bb-2%2F3%EF%BC%884a%26%23178%3Bb%2B2ab%26%23178%3B%EF%BC%89%5D%E5%85%B6%E4%B8%ADa%3D1%2Cb%3D-1)
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5ab²-6[3/2a²b-2/3（4a²b+2ab²）]其中a=1,b=-1
5ab²-6[3/2a²b-2/3（4a²b+2ab²）]其中a=1,b=-1
5ab²-6[3/2a²b-2/3（4a²b+2ab²）]其中a=1,b=-1
5ab²-6[3/2a²b-2/3（4a²b+2ab²）]
=5ab²-9a²b+4（4a²b+2ab²）
=5ab²-9a²b+16a²b+8ab²
=13ab²+7a²b
=13-7
=6