Write the Function Without Radicals by Using Fractional Exponents $$y = \sqrt [ 3 ] { x ^ { 2 } } - \sqrt { 7 x }$$

Multiple Choice

Write the function without radicals by using fractional exponents.
- $$y = \sqrt [ 3 ] { x ^ { 2 } } - \sqrt { 7 x }$$

A) $y = x ^ { 1 / 3 } - ( 7 x ) ^ { 1 / 2 }$
B) $y = x ^ { 3 / 2 } - 7 x ^ { 1 / 2 }$
C) $y = x ^ { 2 / 3 } - ( 7 x ) ^ { 1 / 2 }$
D) $y = x ^ { 2 / 3 } - 7 x ^{1 / 2}$