Factor.
-$x^{2}+4 x y-21 y^{2}$
A) $(x-7 y)(x+y)$
B) $(x+7 y)(x-3 y)$
C) $(x-7 y)(x+3 y)$
D) $(x-y)(x+3 y)$

Name: Factor. -$x^{2}+4 x y-21 y^{2}$ A) $(x-7 y)(x+y)$ B) $(x+7 y)(x-3 y)$ C) $(x-7 y)(x+3 y)$ D) $(x-y)(x+3 y)$
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Question

Quizplus · Accepted Answer

The Answer of Factor.
-$x^{2}+4 x y-21 y^{2}$
A) $(x-7 y)(x+y)$
B) $(x+7 y)(x-3 y)$
C) $(x-7 y)(x+3 y)$
D) $(x-y)(x+3 y)$

Factor - x2+4xy−21y2x^{2}+4 x y-21 y^{2}x2+4xy−21y2 A) (x−7y)(x+y)(x-7 y)(x+y)(x−7y)(x+y) B) (x+7y)(x−3y)(x+7 y)(x-3 y)(x+7y)(x−3y)

Factor
- $x^{2}+4 x y-21 y^{2}$ A) $(x-7 y)(x+y)$ B) $(x+7 y)(x-3 y)$