-2(3a²-4ab)-【2a²-4(2a²-3ab)】化简
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/07 10:22:03
![-2(3a²-4ab)-【2a²-4(2a²-3ab)】化简](/uploads/image/z/250262-62-2.jpg?t=-2%EF%BC%883a%26%23178%3B-4ab%EF%BC%89-%E3%80%902a%26%23178%3B-4%EF%BC%882a%26%23178%3B-3ab%EF%BC%89%E3%80%91%E5%8C%96%E7%AE%80)
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-2(3a²-4ab)-【2a²-4(2a²-3ab)】化简
-2(3a²-4ab)-【2a²-4(2a²-3ab)】化简
-2(3a²-4ab)-【2a²-4(2a²-3ab)】化简
解
原式
=-6a²+8ab-2a²+4(2a²-3ab)
=-8a²+8ab+8a²-12ab
=(-8a²+8a²)+(8ab-12ab)
=-4ab