Given Functions F and G, Perform the Indicated Operations $$f ( x ) = 3 x ^ { 2 } + 5 , \quad g ( x ) = 2 x ^ { 3 } - 1$$

Multiple Choice

Given functions f and g, perform the indicated operations.
- $$f ( x ) = 3 x ^ { 2 } + 5 , \quad g ( x ) = 2 x ^ { 3 } - 1$$

A) $( - \infty , \infty )$
B) $( - \infty , 0 )$ or $( 0 , \infty )$
C) $( 0 , \infty )$
D) $( - \infty , - 3 )$ or $( - 3 , - 2 )$ or $( - 2 , \infty )$ Find the domain of the indicated combined function.