①(-2⅓)÷0.8×(-7分之6) ②7xy+xy³+4+6x-5分之2xy³-5xy-3③2(a²-ab)-3(2a²-3ab)-2【a²-(2a²-ab+b²】
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 08:11:30
![①(-2⅓)÷0.8×(-7分之6) ②7xy+xy³+4+6x-5分之2xy³-5xy-3③2(a²-ab)-3(2a²-3ab)-2【a²-(2a²-ab+b²】](/uploads/image/z/3261673-1-3.jpg?t=%E2%91%A0%EF%BC%88-2%26%238531%3B%EF%BC%89%C3%B70.8%C3%97%EF%BC%88-7%E5%88%86%E4%B9%8B6%EF%BC%89+%E2%91%A17xy%2Bxy%26%23179%3B%2B4%2B6x-5%E5%88%86%E4%B9%8B2xy%26%23179%3B-5xy-3%E2%91%A22%EF%BC%88a%26%23178%3B-ab%EF%BC%89-3%EF%BC%882a%26%23178%3B-3ab%EF%BC%89-2%E3%80%90a%26%23178%3B-%EF%BC%882a%26%23178%3B-ab%2Bb%26%23178%3B%E3%80%91)
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①(-2⅓)÷0.8×(-7分之6) ②7xy+xy³+4+6x-5分之2xy³-5xy-3③2(a²-ab)-3(2a²-3ab)-2【a²-(2a²-ab+b²】
①(-2⅓)÷0.8×(-7分之6) ②7xy+xy³+4+6x-5分之2xy³-5xy-3
③2(a²-ab)-3(2a²-3ab)-2【a²-(2a²-ab+b²】
①(-2⅓)÷0.8×(-7分之6) ②7xy+xy³+4+6x-5分之2xy³-5xy-3③2(a²-ab)-3(2a²-3ab)-2【a²-(2a²-ab+b²】
太过分了吧,这么多