Factor Completely $x^{2}-10 x y+25 y^{2}$ A) $(x-5 y)(x+5 y)$ B) $(x+5 y)^{2}$

Multiple Choice

Factor completely. If the polynomial cannot be factored, write "prime."
- $x^{2}-10 x y+25 y^{2}$

A) $(x-5 y) (x+5 y)$
B) $(x+5 y) ^{2}$
C) Prime
D) $(x-5 y) ^{2}$