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3^21-3×(3^2×3^3)^4+7^0 va rog urgent


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