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Omni-MATH / Let f:Z→Z be a function such that for any integers x,y, we have f(x²−3y²)+f(x²+y²)=2(x+y)f(x−y). Suppose that f(n)>0 for all n>0 and that f(2015)⋅f(2016) is a perfect square. Find … · Discussion

Discussing Let f:Z→Z be a function such that for any integers x,y, we have f(x²−3y²)+f(x²+y²)=2(x+y)f(x−y). Suppose that f(n)>0 for all n>0 and that f(2015)⋅f(2016) is a perfect square. Find … · Omni-MATH

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