Question

Dada a função f(x) = x^2+2 / x-4, determine f(x+2)

Answer 1

f(x) = x*2+2/x-4

f(1) = 1*2+2/1-4

f(1) = 1+2/-3

f(1) = 3/-3

f(1) = -1

Determinando:

f(x+2)

se x = 1

f(x+2) = f(1+2)

então:

f(3)= 3*2+2/3-4

f(3)= 27+2/-1

f(3)= 29/-1

f(3)= -29