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f-f-x-2-y-f-y-2y-f-2-x-f-R-R-




Question Number 187612 by SEKRET last updated on 19/Feb/23
 f(f(x^2 +y))+f(y)=2y+f^2 (x)   f :R→R
f(f(x2+y))+f(y)=2y+f2(x)f:RR

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