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) What is the sum of (2x4 + 5x3 - 8x2 - x + 10) and (8x4 - 4x} + x? - x + 2) ?

A)

10x4 + x3 - 9x2 - 2x + 12

10x4 + 9x? - 7x2 - 2x + 12

10x4 + x3 - 9x? + 12

D)

10x4 + x3 - 7x2 - 2x + 12

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