Factor Completely $$16 x ^ { 2 } + 81$$ A) $( 4 x - 9 ) ^ { 2 }$

Multiple Choice

Factor completely. If the polynomial cannot be factored, write ʺprime.ʺ
- $$16 x ^ { 2 } + 81$$

A) $( 4 x - 9 ) ^ { 2 }$
B) prime
C) $( 4 x + 9 ) ^ { 2 }$
D) $( 4 x + 9 ) ( 4 x - 9 )$