Đặt \(A=\left(n+2014^{2015}\right)\left(n+2015^{2014}\right)\)
\(n=2k\)thì: \(n+2014^{2015}=2k+2014^{2015}\)\(⋮\)\(2\) \(\Rightarrow\)\(A⋮2\) \(n=2k+1\)Ta có: \(n=2k+1\equiv1\left(mod2\right)\)
\(2015^{2014}\equiv1\left(mod2\right)\)
\(\Rightarrow\)\(n+2015^{2014}\)\(⋮2\)\(\Rightarrow\)\(A⋮2\)
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