Factor
- $448 x^{3}+189$ A) $7(4 x+3)\left(16 x^{2}+9\right)$ B) $7(4 x-3)\left(16 x^{2}+12 x+9\right)$

Multiple Choice

Factor.
- $448 x^{3}+189$

A) $7(4 x+3) \left(16 x^{2}+9\right)$
B) $7(4 x-3) \left(16 x^{2}+12 x+9\right)$
C) $7(4 x+3) \left(16 x^{2}-12 x+9\right)$
D) $7\left(64 x^{3}+27\right)$