已知抛物线y=²x+(m-3)x+1的顶点在坐标轴上,试求m的值
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![已知抛物线y=²x+(m-3)x+1的顶点在坐标轴上,试求m的值](/uploads/image/z/10235970-18-0.jpg?t=%E5%B7%B2%E7%9F%A5%E6%8A%9B%E7%89%A9%E7%BA%BFy%3D%26%23178%3Bx%2B%EF%BC%88m-3%EF%BC%89x%2B1%E7%9A%84%E9%A1%B6%E7%82%B9%E5%9C%A8%E5%9D%90%E6%A0%87%E8%BD%B4%E4%B8%8A%2C%E8%AF%95%E6%B1%82m%E7%9A%84%E5%80%BC)
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