Perform the indicated operation.(3x2 - 9x + 5) - (x2 - 4x + 2) + (4x2 + 5)

A. -2x2 - 13x + 12
B. 6x2 + 5x + 8
C. 6x2 - 5x + 8
D. 6x2 - 5x + 12

Answer: C

Mathematics

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