Factor Completely $4 x^{2}-49$ A) $(2 x+7)^{2}$ B) $(2 x+7)(2 x-7)$ C) $(2 x-7)^{2}$

Multiple Choice

Factor completely. If the polynomial cannot be factored, write "prime."
- $4 x^{2}-49$

A) $(2 x+7) ^{2}$
B) $(2 x+7) (2 x-7)$
C) $(2 x-7) ^{2}$
D) $(4 x+1) (x-49)$