设二次函数f(x)满足f(x-2)=f(-x-2),且图像与y轴交点为(0,1),在x轴上截得线段的长为2√2,求f(x)表达式
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![设二次函数f(x)满足f(x-2)=f(-x-2),且图像与y轴交点为(0,1),在x轴上截得线段的长为2√2,求f(x)表达式](/uploads/image/z/2355841-1-1.jpg?t=%E8%AE%BE%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0f%28x%29%E6%BB%A1%E8%B6%B3f%28x-2%29%3Df%28-x-2%29%2C%E4%B8%94%E5%9B%BE%E5%83%8F%E4%B8%8Ey%E8%BD%B4%E4%BA%A4%E7%82%B9%E4%B8%BA%EF%BC%880%2C1%EF%BC%89%2C%E5%9C%A8x%E8%BD%B4%E4%B8%8A%E6%88%AA%E5%BE%97%E7%BA%BF%E6%AE%B5%E7%9A%84%E9%95%BF%E4%B8%BA2%E2%88%9A2%2C%E6%B1%82f%28x%29%E8%A1%A8%E8%BE%BE%E5%BC%8F)
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