Răspuns :
2⁴¹ - 2⁴⁰ = 2⁴⁰ ⁺ ¹ - 2⁴⁰ = 2⁴⁰· ( 2¹ - 1 ) = 2⁴⁰ ·1 =( 2²⁰ )² patrat perfect
2⁴¹.- 2⁴⁰=
2⁴⁰⁺ ¹ -2⁴⁰⁺ ⁰=
2⁴⁰· 2¹ -2⁴⁰· 2⁰=
2⁴⁰·(2¹-2⁰)=
2⁴⁰ ·(2-1)=
2⁴⁰·1=
2⁴⁰=
2²⁰·² =
(2²⁰) ² = pp
2⁴⁰⁺ ¹ -2⁴⁰⁺ ⁰=
2⁴⁰· 2¹ -2⁴⁰· 2⁰=
2⁴⁰·(2¹-2⁰)=
2⁴⁰ ·(2-1)=
2⁴⁰·1=
2⁴⁰=
2²⁰·² =
(2²⁰) ² = pp