Răspuns :
2^76+ 2^75 +2^74=
2^74= factor comun
2^74 *(2^2+2^1+1)=
2^74*(4+2+1)=
2^74* 7
2^74= factor comun
2^74 *(2^2+2^1+1)=
2^74*(4+2+1)=
2^74* 7
2⁷⁶ + 2⁷⁵ + 2⁷⁴ =
2⁷⁴⁺² + 2⁷⁴⁺¹ + 2⁷⁴⁺⁰ =
2⁷⁴·2² + 2⁷⁴ ·2¹ +2⁷⁴· 2⁰=
2⁷⁴·(2²+ 2¹ + 2⁰) =
2⁷⁴ ·( 4+ 2+ 1)=
2⁷⁴ ·7
2⁷⁴⁺² + 2⁷⁴⁺¹ + 2⁷⁴⁺⁰ =
2⁷⁴·2² + 2⁷⁴ ·2¹ +2⁷⁴· 2⁰=
2⁷⁴·(2²+ 2¹ + 2⁰) =
2⁷⁴ ·( 4+ 2+ 1)=
2⁷⁴ ·7