given that f:x->x+3 and g:x->x^2,find g(f(x))

To find g(f(x)), we need to first determine f(x) and then substitute that into g(x).

Given that f(x) = x + 3 and g(x) = x^2, we can substitute f(x) into g(x).

g(f(x)) = g(x + 3) = (x + 3)^2

Expanding this gives:

g(f(x)) = x^2 + 6x + 9

Therefore, g(f(x)) = x^2 + 6x + 9.