Find the Sum or Difference $$\left( - 8 x ^ { 5 } + 2 x ^ { 7 } + 9 + 3 x ^ { 6 } \right) - \left( 8 + 8 x ^ { 6 } + 5 x ^ { 7 } + 5 x ^ { 5 } \right)$$

Find the sum or difference.
- $$\left( - 8 x ^ { 5 } + 2 x ^ { 7 } + 9 + 3 x ^ { 6 } \right) - \left( 8 + 8 x ^ { 6 } + 5 x ^ { 7 } + 5 x ^ { 5 } \right)$$

A) $7 x ^ { 7 } + 11 x ^ { 6 } - 3 x ^ { 5 } + 17$
B) $- 3 x ^ { 7 } + 11 x ^ { 6 } - 3 x ^ { 5 } + 17$
C) $- 3 x ^ { 7 } - 5 x ^ { 6 } - 13 x ^ { 5 } + 1$
D) $7 x ^ { 7 } + 11 x ^ { 6 } - 3 x ^ { 5 } + 1$

Correct Answer:

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