Factor out the indicated quantity. $- 4 m n ^ { 3 } + 5 m n - 9 m$ : Factor out the quantity $- m$.
A) $- m \left( - 4 n ^ { 3 } + 5 n - 9 \right)$
B) $- m \left( 4 n ^ { 3 } - 5 n + 9 m \right)$
C) $- m \left( 4 n ^ { 3 } - 5 n + 9 \right)$
D) $- m \left( 4 n ^ { 3 } - 5 n - 9 \right)$

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The Answer of Factor out the indicated quantity. $- 4 m n ^ { 3 } + 5 m n - 9 m$ : Factor out the quantity $- m$.
A) $- m \left( - 4 n ^ { 3 } + 5 n - 9 \right)$
B) $- m \left( 4 n ^ { 3 } - 5 n + 9 m \right)$
C) $- m \left( 4 n ^ { 3 } - 5 n + 9 \right)$
D) $- m \left( 4 n ^ { 3 } - 5 n - 9 \right)$

Factor Out the Indicated Quantity −4mn3+5mn−9m- 4 m n ^ { 3 } + 5 m n - 9 m−4mn3+5mn−9m

Factor Out the Indicated Quantity $- 4 m n ^ { 3 } + 5 m n - 9 m$