作业帮先化简,再求值 4a²b-[3ab²-2﹙3a²b-1）],其中a=-0.1,b=1
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/27 22:59:23
![先化简,再求值 4a²b-[3ab²-2﹙3a²b-1）],其中a=-0.1,b=1](/uploads/image/z/765348-60-8.jpg?t=%E5%85%88%E5%8C%96%E7%AE%80%2C%E5%86%8D%E6%B1%82%E5%80%BC+4a%26%23178%3Bb-%5B3ab%26%23178%3B-2%EF%B9%993a%26%23178%3Bb-1%EF%BC%89%5D%2C%E5%85%B6%E4%B8%ADa%3D-0.1%2Cb%3D1)
先化简,再求值 4a²b-[3ab²-2﹙3a²b-1）],其中a=-0.1,b=1
先化简,再求值 4a²b-[3ab²-2﹙3a²b-1）],其中a=-0.1,b=1
先化简,再求值 4a²b-[3ab²-2﹙3a²b-1）],其中a=-0.1,b=1
4a²b-[3ab²-2﹙3a²b-1）]
=4a²b-(3ab²-6a²b+2)
=4a²b-3ab²+6a²b-2
=10a²b-3ab²-2
=10x0.01x1-3x(-0.1)x1-2
=0.1+0.3-2
=0.4-2
=-1.6
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