【急】2个初二因式分解(十字相乘法)x^2 + ( 3m + n )x + 3mn-------------x^2 - 2ax - 2a - 1我电脑有问题诶~不能上QQ的说..要死机的
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![【急】2个初二因式分解(十字相乘法)x^2 + ( 3m + n )x + 3mn-------------x^2 - 2ax - 2a - 1我电脑有问题诶~不能上QQ的说..要死机的](/uploads/image/z/469818-18-8.jpg?t=%E3%80%90%E6%80%A5%E3%80%912%E4%B8%AA%E5%88%9D%E4%BA%8C%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%EF%BC%88%E5%8D%81%E5%AD%97%E7%9B%B8%E4%B9%98%E6%B3%95%EF%BC%89x%5E2+%2B+%28+3m+%2B+n+%29x+%2B+3mn%EF%BC%8D%EF%BC%8D%EF%BC%8D%EF%BC%8D%EF%BC%8D%EF%BC%8D%EF%BC%8D%EF%BC%8D%EF%BC%8D%EF%BC%8D%EF%BC%8D%EF%BC%8D%EF%BC%8Dx%5E2+-+2ax+-+2a+-+1%E6%88%91%E7%94%B5%E8%84%91%E6%9C%89%E9%97%AE%E9%A2%98%E8%AF%B6%7E%E4%B8%8D%E8%83%BD%E4%B8%8AQQ%E7%9A%84%E8%AF%B4..%E8%A6%81%E6%AD%BB%E6%9C%BA%E7%9A%84)
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