Find the Sum or Difference $$\left( - 2 x ^ { 2 } + 6 x ^ { 4 } + 3 - 4 x ^ { 3 } \right) - \left( - 9 - 7 x ^ { 3 } + 4 x ^ { 4 } + 5 x ^ { 2 } \right)$$

Find the sum or difference.
- $$\left( - 2 x ^ { 2 } + 6 x ^ { 4 } + 3 - 4 x ^ { 3 } \right) - \left( - 9 - 7 x ^ { 3 } + 4 x ^ { 4 } + 5 x ^ { 2 } \right)$$

A) $2 x ^ { 4 } - 11 x ^ { 3 } + 3 x ^ { 2 } - 6$
B) $10 x ^ { 4 } - 11 x ^ { 3 } + 3 x ^ { 2 } - 6$
C) $10 x ^ { 4 } - 11 x ^ { 3 } + 3 x ^ { 2 } + 12$
D) $2 x ^ { 4 } + 3 x ^ { 3 } - 7 x ^ { 2 } + 12$

Correct Answer:

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