Factor completely.
-$7 x^{2}-21 x y-28 y^{2}$
A) Prime
B) $7(x-y)(x+4 y)$
C) $7(x+y)(x-4 y)$
D) $(7 x-7 y)(x+4 y)$

Name: Factor completely. -$7 x^{2}-21 x y-28 y^{2}$ A) Prime B) $7(x-y)(x+4 y)$ C) $7(x+y)(x-4 y)$ D) $(7 x-7 y)(x+4 y)$
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The Answer of Factor completely.
-$7 x^{2}-21 x y-28 y^{2}$
A) Prime
B) $7(x-y)(x+4 y)$
C) $7(x+y)(x-4 y)$
D) $(7 x-7 y)(x+4 y)$

Factor Completely 7x2−21xy−28y27 x^{2}-21 x y-28 y^{2}7x2−21xy−28y2 A) Prime B) 7(x−y)(x+4y)7(x-y)(x+4 y)7(x−y)(x+4y)

Factor Completely $7 x^{2}-21 x y-28 y^{2}$ A) Prime
B) $7(x-y)(x+4 y)$