作业帮化简：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：2024/05/08 14:58:36
![化简：4a²-[a²+（4a²-2a)-2(a²-3a)] 答得好,分高啊](/uploads/image/z/379715-59-5.jpg?t=%E5%8C%96%E7%AE%80%EF%BC%9A4a%26%23178%3B-%5Ba%26%23178%3B%2B%EF%BC%884a%26%23178%3B-2a%29-2%28a%26%23178%3B-3a%29%5D+%E7%AD%94%E5%BE%97%E5%A5%BD%2C%E5%88%86%E9%AB%98%E5%95%8A)
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