①(x²-x)-4(2x²-2x-3)=0②3x/x²-1 +x²-1/3x=5/2①(x²-x)²-4(2x²-2x-3)=0上面得错了
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![①(x²-x)-4(2x²-2x-3)=0②3x/x²-1 +x²-1/3x=5/2①(x²-x)²-4(2x²-2x-3)=0上面得错了](/uploads/image/z/9481522-58-2.jpg?t=%E2%91%A0%28x%26sup2%3B-x%29-4%282x%26sup2%3B-2x-3%EF%BC%89%3D0%E2%91%A13x%2Fx%26sup2%3B-1+%2Bx%26sup2%3B-1%2F3x%3D5%2F2%E2%91%A0%28x%26sup2%3B-x%29%26sup2%3B-4%282x%26sup2%3B-2x-3%EF%BC%89%3D0%E4%B8%8A%E9%9D%A2%E5%BE%97%E9%94%99%E4%BA%86)
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