Solve the Problem $f ( x ) = 5 \sqrt { x - 3 } - 5 \sqrt { 2 x - 4 }$

Multiple Choice

Solve the problem.
-For the function $f ( x ) = 5 \sqrt { x - 3 } - 5 \sqrt { 2 x - 4 }$ , find all values $x$ for which $f ( x ) = 5$ .

A) 5
B) 4
C) $- 5$
D) $\varnothing$