For the Pair of Functions, Find the Indicated Sum, Difference $$f ( x ) = \sqrt { 3 x + 5 } , g ( x ) = \sqrt { 4 x - 25 }$$

Multiple Choice

For the pair of functions, find the indicated sum, difference, product, or quotient.
- $$f ( x ) = \sqrt { 3 x + 5 } , g ( x ) = \sqrt { 4 x - 25 }$$
Find $( f g ) ( x )$ .

A) $( 3 x + 5 ) ( 2 x - 5 )$
B) $( \sqrt { 3 x + 5 } ) ( \sqrt { 4 x - 25 } )$
C) $( 2 x - 5 ) ( \sqrt { 3 x + 5 } )$
D) $( 3 x + 5 ) ( 4 x - 25 )$