化简:① a²-3ab+4b²-(2b²-3ab-3a²) ② m-{3n-4m+【m-5(m-n)+m}
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![化简:① a²-3ab+4b²-(2b²-3ab-3a²) ② m-{3n-4m+【m-5(m-n)+m}](/uploads/image/z/8625863-47-3.jpg?t=%E5%8C%96%E7%AE%80%EF%BC%9A%E2%91%A0+a%26%23178%3B-3ab%2B4b%26%23178%3B-%EF%BC%882b%26%23178%3B-3ab-3a%26%23178%3B%EF%BC%89+%E2%91%A1+m-%7B3n-4m%2B%E3%80%90m-5%EF%BC%88m-n%EF%BC%89%2Bm%7D)
化简:① a²-3ab+4b²-(2b²-3ab-3a²) ② m-{3n-4m+【m-5(m-n)+m}
化简:① a²-3ab+4b²-(2b²-3ab-3a²)
② m-{3n-4m+【m-5(m-n)+m}
化简:① a²-3ab+4b²-(2b²-3ab-3a²) ② m-{3n-4m+【m-5(m-n)+m}
不知道
1 4a^2+2b^2
2 那个【是什么意思啊?
4a²+2b²
8m-8n
1、4a2+2b2
2、2m+5n