Factor Write the Answer Without Negative Exponents $x ^ { 9 / 2 } + x ^ { 1 / 2 }$

Multiple Choice

Factor. Write the answer without negative exponents.
- $x ^ { 9 / 2 } + x ^ { 1 / 2 }$

A) $x ^ { 1 / 2 } \left( x ^ { 4 } + 1 \right)$
B) $x ^ { 1 / 2 } \left( x ^ { 4 } + x \right)$
C) $x ^ { 1 / 2 } \left( x ^ { 9 } + 1 \right)$
D) $x ^ { 1 / 2 } \left( x ^ { 9 } + x \right)$