Răspuns :
3²¹ - 3 · (3² · 3³)⁴ + 7⁰ =
= 3²¹ - 3 · (3⁵)⁴ + 1 =
= 3²¹ - 3 · 3²⁰ + 1 =
= 3²¹ - 3²¹ + 1 = 1.
/rfd
3²¹ - 3 x ( 3² x 3³ )⁴ + 7⁰ = 1
= 3²¹ - 3 x 3⁵ˣ⁴ + 1 =
= 3²¹ - 3²¹ + 1 =
= 0 + 1 =
= 1
3²¹ - 3 · (3² · 3³)⁴ + 7⁰ =
= 3²¹ - 3 · (3⁵)⁴ + 1 =
= 3²¹ - 3 · 3²⁰ + 1 =
= 3²¹ - 3²¹ + 1 = 1.
/rfd
3²¹ - 3 x ( 3² x 3³ )⁴ + 7⁰ = 1
= 3²¹ - 3 x 3⁵ˣ⁴ + 1 =
= 3²¹ - 3²¹ + 1 =
= 0 + 1 =
= 1