C = (x^2 - 5x + 2 )^2 + 2(5x - 2)(x^2 - 5x + 2) + (5x - 2)^2

C = (x^2 - 5x + 2 )^2 + 2(5x - 2)(x^2 - 5x + 2) + (5x - 2)^2
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