Factor the Trinomial $x ^ { 2 n } - 5 x ^ { n } - 36$

Multiple Choice

Factor the trinomial $x ^ { 2 n } - 5 x ^ { n } - 36$ . (Assume that n represents a positive integer.)

A) $\left( x ^ { n } - 9 \right) \left( x ^ { n } - 4 \right)$
B) $\left( x ^ { 2 n } - 9 \right) \left( x ^ { 2 n } + 4 \right)$
C) $\left( x ^ { n } - 9 \right) \left( x ^ { n } + 4 \right)$
D) $\left( x ^ { 2 n } + 9 \right) \left( x ^ { 2 n } - 4 \right)$
E) $\left( x ^ { n } + 9 \right) \left( x ^ { n } - 4 \right)$