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Find the Sum or Difference (6x3+x7)+(8x3+4x2)(9x25x1)- \left( 6 x ^ { 3 } + x - 7 \right) + \left( 8 x ^ { 3 } + 4 x ^ { 2 } \right) - \left( 9 x ^ { 2 } - 5 x - 1 \right)

Question 149

Multiple Choice

Find the sum or difference.
- (6x3+x7) +(8x3+4x2) (9x25x1) - \left( 6 x ^ { 3 } + x - 7 \right) + \left( 8 x ^ { 3 } + 4 x ^ { 2 } \right) - \left( 9 x ^ { 2 } - 5 x - 1 \right)


A) 1x33x24x+81 x ^ { 3 } - 3 x ^ { 2 } - 4 x + 8
B) 2x35x2+4x+82 x ^ { 3 } - 5 x ^ { 2 } + 4 x + 8
C) 14x313x2+4x814 x ^ { 3 } - 13 x ^ { 2 } + 4 x - 8
D) 2x3+5x2+6x82 x ^ { 3 } + 5 x ^ { 2 } + 6 x - 8

Correct Answer:

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