求比多项式7m²-4mn-n²少2m²-mn+2n²的多项式,
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/24 15:39:25
![求比多项式7m²-4mn-n²少2m²-mn+2n²的多项式,](/uploads/image/z/1657016-8-6.jpg?t=%E6%B1%82%E6%AF%94%E5%A4%9A%E9%A1%B9%E5%BC%8F7m%26%23178%3B-4mn-n%26%23178%3B%E5%B0%912m%26%23178%3B-mn%2B2n%26%23178%3B%E7%9A%84%E5%A4%9A%E9%A1%B9%E5%BC%8F%2C)
求比多项式7m²-4mn-n²少2m²-mn+2n²的多项式,
求比多项式7m²-4mn-n²少2m²-mn+2n²的多项式,
求比多项式7m²-4mn-n²少2m²-mn+2n²的多项式,
(7m²-4mn-n²)-(2m²-mn+2n²)=5m²-3mn-3n²
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来源:学生作业帮助网 编辑:作业帮 时间:2024/06/24 15:39:25
求比多项式7m²-4mn-n²少2m²-mn+2n²的多项式,
求比多项式7m²-4mn-n²少2m²-mn+2n²的多项式,
求比多项式7m²-4mn-n²少2m²-mn+2n²的多项式,
(7m²-4mn-n²)-(2m²-mn+2n²)=5m²-3mn-3n²