以下一元三次方程怎么因式分解,X^3-X^2-X+2.备注:如使用待定系数法,会涉及解三元二次方程.如使用待定系数法,会涉及解三元二次方程.难啊.待定系数法见下:X^3-X^2-X+2 = (X^2+aX+b)(X+c) = X^3+(a+c)X^
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![以下一元三次方程怎么因式分解,X^3-X^2-X+2.备注:如使用待定系数法,会涉及解三元二次方程.如使用待定系数法,会涉及解三元二次方程.难啊.待定系数法见下:X^3-X^2-X+2 = (X^2+aX+b)(X+c) = X^3+(a+c)X^](/uploads/image/z/3134403-27-3.jpg?t=%E4%BB%A5%E4%B8%8B%E4%B8%80%E5%85%83%E4%B8%89%E6%AC%A1%E6%96%B9%E7%A8%8B%E6%80%8E%E4%B9%88%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%2CX%5E3-X%5E2-X%2B2.%E5%A4%87%E6%B3%A8%EF%BC%9A%E5%A6%82%E4%BD%BF%E7%94%A8%E5%BE%85%E5%AE%9A%E7%B3%BB%E6%95%B0%E6%B3%95%2C%E4%BC%9A%E6%B6%89%E5%8F%8A%E8%A7%A3%E4%B8%89%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8B.%E5%A6%82%E4%BD%BF%E7%94%A8%E5%BE%85%E5%AE%9A%E7%B3%BB%E6%95%B0%E6%B3%95%2C%E4%BC%9A%E6%B6%89%E5%8F%8A%E8%A7%A3%E4%B8%89%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8B.%E9%9A%BE%E5%95%8A.%E5%BE%85%E5%AE%9A%E7%B3%BB%E6%95%B0%E6%B3%95%E8%A7%81%E4%B8%8B%EF%BC%9AX%5E3-X%5E2-X%2B2+%3D+%28X%5E2%2BaX%2Bb%29%28X%2Bc%29+%3D+X%5E3%2B%28a%2Bc%29X%5E)
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