Consider the function find f2gxSolutionsince function fx an

Consider the function

find f(2g(x))

Solution

since function ( f(x) and g(x) are not given) .I am considering my own functions f(x) and g(x).and calculating f(2g(x)) according to that.

Let f(x) = x² +4

g(x) = x

2 g(x) = 2x

f( 2 g(x)) = ? , to calculate it place value of 2*g(x) = 2x in f(x) at place of x.

f( 2 g(x)) = ( 2x)² + 4

= 4 x² + 4