Factor Completely $w^{4}-s^{4}$ A) $\left(w^{2}+s^{2}\right)(w-s)(w-s)$ B) $\left(w^{2}+s^{2}\right)(w-s)(w+s)$ C) $\left(w^{2}+s^{2}\right)\left(w^{2}-s^{2}\right)$ D) $(\mathrm{w}+\mathrm{s})^{2}(\mathrm{w}-\mathrm{s})^{2}$

Multiple Choice

Factor completely. If the polynomial cannot be factored, write "prime."
- $w^{4}-s^{4}$

A) $\left(w^{2}+s^{2}\right) (w-s) (w-s)$
B) $\left(w^{2}+s^{2}\right) (w-s) (w+s)$
C) $\left(w^{2}+s^{2}\right) \left(w^{2}-s^{2}\right)$
D) $(\mathrm{w}+\mathrm{s}) ^{2}(\mathrm{w}-\mathrm{s}) ^{2}$