Question

f(x)=x²+4 and g(x)=x+3 .find (fog)(x) and (gof)(x)​

Answer 1

Answer:

fog(x) = f(g(x))

=f(x+3)

=(x+3)^2 + 4

=x^2 + 6x + 9 + 4

=x^2 + 6x + 13

gof(x)= g(f(x))

=g(x^2+4)

=x^2 + 4 + 3

=x^2 + 7

Hope this helps.

feel free to correct me if I'm wrong.