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Omni-MATH / Find all functions f:R→R such that f(x+y)+f(x)f(y)=f(xy)+2xy+1 for all real numbers x and y. [i] · Discussion

Discussing Find all functions f:R→R such that f(x+y)+f(x)f(y)=f(xy)+2xy+1 for all real numbers x and y. [i] · Omni-MATH

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