1.

Let f(x) = 7x 4

and g(x) = x² + x.

Find the following:

(g f)(x)

2.Let f(x) = 3x + 1

and g(x) = x² 1.

Find the following:

(g f)(2)

3.Let f(x) = 3x 5

and g(x) = x² + x.

Find the following:

(f g)(x)