化简:4a²-[a²+(4a²-2a)-2(a²-3a)] 答得好,分高啊
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 23:41:17
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化简:4a²-[a²+(4a²-2a)-2(a²-3a)] 答得好,分高啊
化简:4a²-[a²+(4a²-2a)-2(a²-3a)] 答得好,分高啊
化简:4a²-[a²+(4a²-2a)-2(a²-3a)] 答得好,分高啊
4a²-[a²+(4a²-2a)-2(a²-3a)]
=4a²-(a²+4a²-2a-2a²+6a)
=4a²-3a²-4a
=a²-4a
=4a²-[a²+4a²-2a-(2a²-6a)]
=4a²-(a²+4a²-2a-2a²+6a)
=4a²-a²-4a²+2a+2a²-6a
=a²-4a