Solve for Real Roots $$x - 4 x ^ { 1 / 2 } - 32 = 0$$

Multiple Choice

Solve for real roots.
- $$x - 4 x ^ { 1 / 2 } - 32 = 0$$

A) $x = 64$
B) $x = 128$
C) $x = 32$
D) $x = 48$