[tex]m = {4}^{n + 1} \times {9}^{n + 2} - {6}^{2n + 1} \times 9 - {2}^{2n} \times {9}^{n + 1} \\ \\ m = {4}^{n} \times {4}^{1} \times {9}^{n} \times {9}^{2} - ({6}^{2}) ^{n} \times {6}^{1} \times 9 - ( {2}^{2})^{n} \times {9}^{n} \times {9}^{1} \\ \\ m = {36}^{n} \times 324 - {36}^{n} \times 54 - {36}^{n} \times 9 \\ \\ m = {36}^{n}(324 - 54 - 9) \\ \\ m = {36}^{n} \times 261=>divizibil ~cu~261[/tex]
