Question

Sendo dados f(×)=x²+2 e G (×)=3x,calcular G(f (x) ) e F(g (x) )

Answer 1

G [ x^2 + 2] =
3. ( x^2 + 2) = 3x^2 + 6

Answer 2

 f(×)=x²+2
 G (×)=3x

G(f (x) )= G(x²+2)= 3(x²+2) = 3x² + 6 ==> G(f (x) )= 3x² + 6

F(g (x) ) = F(3x ) =((3x)²+2 = 9x² + 2 ==>F(g (x) ) = 9x² + 2