Question

F(x)=a²x+1 y f(2)=81 , a²+a+1

Answer 1

F(x) = a^2x + 1

F(2) = a^2 . (2) + 1 = 81

= 2a^2 + 1 = 81

= 2a^2 = 80

= a^2 = 40

= a^2 = 4x10

= a = 2x√10

a^2 + a + 1

(2√10)^2 + 2√10 + 1

4x10 + 2√10 + 1

40 + 2√10 + 1

41 + 2√10

Respuesta: 41 + 2√10