已知二次函数f(x)=ax²+bx(x≠0)满足f(-x+5)=f(x-3),且方程f(x)=x有等根,①求函数解析式 ⑥当x【-1/2,1】时,函数f(x)的图像总在函数y=2x+m的下方,求m的范围,
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![已知二次函数f(x)=ax²+bx(x≠0)满足f(-x+5)=f(x-3),且方程f(x)=x有等根,①求函数解析式 ⑥当x【-1/2,1】时,函数f(x)的图像总在函数y=2x+m的下方,求m的范围,](/uploads/image/z/1599006-30-6.jpg?t=%E5%B7%B2%E7%9F%A5%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0f%EF%BC%88x%EF%BC%89%3Dax%26%23178%3B%2Bbx%EF%BC%88x%E2%89%A00%EF%BC%89%E6%BB%A1%E8%B6%B3f%EF%BC%88-x%2B5%EF%BC%89%3Df%EF%BC%88x-3%EF%BC%89%2C%E4%B8%94%E6%96%B9%E7%A8%8Bf%EF%BC%88x%EF%BC%89%3Dx%E6%9C%89%E7%AD%89%E6%A0%B9%2C%E2%91%A0%E6%B1%82%E5%87%BD%E6%95%B0%E8%A7%A3%E6%9E%90%E5%BC%8F+%E2%91%A5%E5%BD%93x%E3%80%90-1%2F2%2C1%E3%80%91%E6%97%B6%2C%E5%87%BD%E6%95%B0f%EF%BC%88x%EF%BC%89%E7%9A%84%E5%9B%BE%E5%83%8F%E6%80%BB%E5%9C%A8%E5%87%BD%E6%95%B0y%3D2x%2Bm%E7%9A%84%E4%B8%8B%E6%96%B9%2C%E6%B1%82m%E7%9A%84%E8%8C%83%E5%9B%B4%2C)
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