va rog ajutati
[tex]11 | {2}^{n + 1} \times {3}^{n} + {2}^{n} \times {3}^{n + 1} [/tex]
[tex]5 | {4}^{n + 1} \times {3}^{2n + 1} - {2}^{2n + 1} \times {9}^{n} [/tex]
[tex]59 | {63}^{n + 1} + {21}^{n} \times {3}^{n + 1} - {9}^{n} \times {7}^{n + 1} [/tex]

aflati numarul natural n​