Use Long Division to Divide $\left( 4 x ^ { 3 } - 21 x ^ { 2 } - 33 x + 28 \right) \div ( 4 x + 7 )$

Use long division to divide.​ $\left( 4 x ^ { 3 } - 21 x ^ { 2 } - 33 x + 28 \right) \div ( 4 x + 7 )$ ​

A) $x ^ { 2 } - 7 x - 4 , x \neq - \frac { 7 } { 4 }$
B) $4 x ^ { 3 } - 7 x + 4 , x \neq - \frac { 7 } { 4 }$
C) $x ^ { 2 } + 7 x + 4 , x \neq - \frac { 7 } { 4 }$
D) $x ^ { 2 } - 7 x + 4 , x \neq - \frac { 7 } { 4 }$
E) $4 x ^ { 2 } - 7 x - 4 , x \neq - \frac { 7 } { 4 }$

Correct Answer:

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