已知-3x^m-2ny^-n+2与1/5x³y^-4+m是同类项,求(m-2n)²-5(m+n)-2已知-3x^m-2ny^-n+2与1/5x³y^-4+m是同类项,求(m-2n)²-5(m+n)-2(m-2n)²+m+n的值.十万火急!
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![已知-3x^m-2ny^-n+2与1/5x³y^-4+m是同类项,求(m-2n)²-5(m+n)-2已知-3x^m-2ny^-n+2与1/5x³y^-4+m是同类项,求(m-2n)²-5(m+n)-2(m-2n)²+m+n的值.十万火急!](/uploads/image/z/1333364-68-4.jpg?t=%E5%B7%B2%E7%9F%A5-3x%5Em-2ny%5E-n%2B2%E4%B8%8E1%2F5x%26%23179%3By%5E-4%2Bm%E6%98%AF%E5%90%8C%E7%B1%BB%E9%A1%B9%2C%E6%B1%82%EF%BC%88m-2n%EF%BC%89%26%23178%3B-5%EF%BC%88m%2Bn%EF%BC%89-2%E5%B7%B2%E7%9F%A5-3x%5Em-2ny%5E-n%2B2%E4%B8%8E1%2F5x%26%23179%3By%5E-4%2Bm%E6%98%AF%E5%90%8C%E7%B1%BB%E9%A1%B9%2C%E6%B1%82%EF%BC%88m-2n%EF%BC%89%26%23178%3B-5%EF%BC%88m%2Bn%EF%BC%89-2%EF%BC%88m-2n%EF%BC%89%26%23178%3B%2Bm%2Bn%E7%9A%84%E5%80%BC.%E5%8D%81%E4%B8%87%E7%81%AB%E6%80%A5%21)
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来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 21:01:50