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Find the Sum or Difference (2n79n7n6)+(4n6+5n76n)\left( 2 n ^ { 7 } - 9 n - 7 n ^ { 6 } \right) + \left( - 4 n ^ { 6 } + 5 n ^ { 7 } - 6 n \right)

Question 253

Multiple Choice

Find the sum or difference.
- (2n79n7n6) +(4n6+5n76n) \left( 2 n ^ { 7 } - 9 n - 7 n ^ { 6 } \right) + \left( - 4 n ^ { 6 } + 5 n ^ { 7 } - 6 n \right)


A) 7n11n715n67 n - 11 n ^ { 7 } - 15 n ^ { 6 }
B) 19n14- 19 n ^{14}
C) 4n72n613n- 4 n ^ { 7 } - 2 n ^ { 6 } - 13 n
D) 7n711n615n7 n ^ { 7 } - 11 n ^ { 6 } - 15 n

Correct Answer:

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