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x^2 – 2x + 5,3x^2 – 2x + 5,x^2 – 5x + 6,x^2 + 4x + 8
x^2 – 2x + 5,3x^2 – 2x + 5,x^2 – 5x + 6,x^2 + 4x + 8
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