Question

When f(x) = 2x and g(x) = x2+3, find g(f(x)).
Pls help I’m begging it’s due in like 30 min

Answer 1

4x² + 3

Explanation:

To obtain g(f(x))), substitute x = f(x) into g(x), that is

g(2x)

= (2x)² + 3

= 4x² + 3