一元二次不等式习题14-4x平方≥xx(x+2)<x(3-x)+1-x平方-2x+8≥0(5-x)(x+4)<0(x+7)(2-x)>0(3x+2)(2x-1)<0(1/2x-1)(5x+3)≥0
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![一元二次不等式习题14-4x平方≥xx(x+2)<x(3-x)+1-x平方-2x+8≥0(5-x)(x+4)<0(x+7)(2-x)>0(3x+2)(2x-1)<0(1/2x-1)(5x+3)≥0](/uploads/image/z/1464591-39-1.jpg?t=%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E4%B8%8D%E7%AD%89%E5%BC%8F%E4%B9%A0%E9%A2%9814-4x%E5%B9%B3%E6%96%B9%E2%89%A5xx%28x%2B2%29%EF%BC%9Cx%283-x%29%2B1-x%E5%B9%B3%E6%96%B9-2x%2B8%E2%89%A50%285-x%29%28x%2B4%29%EF%BC%9C0%28x%2B7%29%282-x%29%EF%BC%9E0%283x%2B2%29%282x-1%29%EF%BC%9C0%281%2F2x-1%29%EF%BC%885x%2B3%EF%BC%89%E2%89%A50)
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