7a²-(5a²-2b)+4a(2a²-3b)化简
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 21:47:47
![7a²-(5a²-2b)+4a(2a²-3b)化简](/uploads/image/z/379720-64-0.jpg?t=7a%26%23178%3B-%EF%BC%885a%26%23178%3B-2b%EF%BC%89%2B4a%EF%BC%882a%26%23178%3B-3b%EF%BC%89%E5%8C%96%E7%AE%80)
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7a²-(5a²-2b)+4a(2a²-3b)化简
7a²-(5a²-2b)+4a(2a²-3b)化简
7a²-(5a²-2b)+4a(2a²-3b)化简
7a²-(5a²-2b)+4a(2a²-3b)
=7a²-5a²+2b+8a³-12ab
=8a³+2a²-12ab+2b
=2a²-5b+8a^3