设x1,x2是方程2x²-6x+3=0的两个根,利用根与系数关系,求下列的值:(1)(x1-x2)²;(2)(x1+1/x2)(x2+1/x1);(3)(1/x1²+1/x2²)thx`````
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![设x1,x2是方程2x²-6x+3=0的两个根,利用根与系数关系,求下列的值:(1)(x1-x2)²;(2)(x1+1/x2)(x2+1/x1);(3)(1/x1²+1/x2²)thx`````](/uploads/image/z/3136218-42-8.jpg?t=%E8%AE%BEx1%2Cx2%E6%98%AF%E6%96%B9%E7%A8%8B2x%26sup2%3B-6x%2B3%3D0%E7%9A%84%E4%B8%A4%E4%B8%AA%E6%A0%B9%2C%E5%88%A9%E7%94%A8%E6%A0%B9%E4%B8%8E%E7%B3%BB%E6%95%B0%E5%85%B3%E7%B3%BB%2C%E6%B1%82%E4%B8%8B%E5%88%97%E7%9A%84%E5%80%BC%EF%BC%9A%EF%BC%881%EF%BC%89%EF%BC%88x1-x2%EF%BC%89%26sup2%3B%EF%BC%9B%EF%BC%882%EF%BC%89%EF%BC%88x1%2B1%2Fx2%29%28x2%2B1%2Fx1%29%EF%BC%9B%283%29%281%2Fx1%26sup2%3B%2B1%2Fx2%26sup2%3B%29thx%60%60%60%60%60)
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