Question

Se f(g(x)) = 2x^2 - 4x + 4 e f(x-2)= x+2, entao o valor de g(2) é?

Answer 1

f(g(2)) = 2.2^2 - 4.2 + 4
f(g(2)) = 8 - 8 + 4
f(g(2)) = 4

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