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

Multiple Choice

Factor completely. If the polynomial cannot be factored, write "prime."
- $4 x^{2}+81$

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