A polynomial of 6 t h degree f ( x ) satisfies f ( x ) = f ( 2 − x ) ∀ x ∈ R . If f ( x ) = 0 has four distinct and two equal roots, then the sum of the roots of f ( x ) = 0 is

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Let α be a root of f ( x ) = 0 ∴ f ( α ) = f ( 2 − α ) f ( x ) has 4 distinct and two equal roots ∴ Sum of roots = 6

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