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2017 IMO Problems/Problem 2

Revision as of 10:18, 5 June 2019 by Epicskills (talk | contribs) (Created page with "Let <math>\mathbb{R}</math> be the set of real numbers , determine all functions <math>f:\mathbb{R}\rightarrow\mathbb{R}</math> such that for any real numbers <math>x</math>...")
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Let $\mathbb{R}$ be the set of real numbers , determine all functions $f:\mathbb{R}\rightarrow\mathbb{R}$ such that for any real numbers $x$ and $y$ ${f(f(x)f(y)) + f(x+y)}$ =$f(xy)$

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