Respuesta :

Answer:  1) gof(x) = -(x+3)

2) fog(x) = -x+3

Step-by-step explanation:

Since we have given that

Define f: R → Rand g: R → R

And f(x) = x+3

g(x) = -x

We need to find the functions as follows:

1) gof is given by

[tex]gof(x)=g(f(x))=g(x+3)=-(x+3)[/tex]

2) fog is given by

[tex]fog(x)=f(g(x))=f(-x)=-x+3[/tex]

Hence, 1) gof(x) = -(x+3)

2) fog(x) = -x+3