一道二次函数的题求解已知二次函数的图像经过(1,4)(5,0)两点,且对称轴为x=2.求此二次函数的表达式.
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![一道二次函数的题求解已知二次函数的图像经过(1,4)(5,0)两点,且对称轴为x=2.求此二次函数的表达式.](/uploads/image/z/3947825-65-5.jpg?t=%E4%B8%80%E9%81%93%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0%E7%9A%84%E9%A2%98%E6%B1%82%E8%A7%A3%E5%B7%B2%E7%9F%A5%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0%E7%9A%84%E5%9B%BE%E5%83%8F%E7%BB%8F%E8%BF%87%EF%BC%881%2C4%EF%BC%89%EF%BC%885%2C0%EF%BC%89%E4%B8%A4%E7%82%B9%2C%E4%B8%94%E5%AF%B9%E7%A7%B0%E8%BD%B4%E4%B8%BAx%3D2.%E6%B1%82%E6%AD%A4%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0%E7%9A%84%E8%A1%A8%E8%BE%BE%E5%BC%8F.)
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