Factor the Polynomial Completely
- $49 s^{2}-81 t^{4}$ A) $\left(7 s-9 t^{2}\right)^{2}$

Multiple Choice

Factor the polynomial completely
- $49 s^{2}-81 t^{4}$

A) $\left(7 s-9 t^{2}\right) ^{2}$
B) $\left(7 s+9 t^{2}\right) ^{2}$
C) $\left(49 \mathrm{~s}+\mathrm{t}^{2}\right) \left(\mathrm{s}-81 \mathrm{t}^{2}\right)$
D) $\left(7 \mathrm{~s}+9 \mathrm{t}^{2}\right) \left(7 \mathrm{~s}-9 \mathrm{t}^{2}\right)$