Vrijeme: 23:17

Divide et impera #1

Odredi n\in\mathbb{Z} takav da je izraz \frac{18n^2+4}{3n+1}\in\mathbb{Z} te njegova apsolutna vrijednost postiže maksimum.
Determine n \in \mathbb{Z} such that the expression \frac{18n^2+4}{3n+1} is an integer and its absolute value is maximized.