Perform the indicated operation.(3x2 + 7x - 1) - (-5x2 + 9x + 2) + (-2x2 - 3x - 5)
A. 6x2 - 5x - 8
B. -4x2 + 5x - 8
C. -4x2 - 5x + 8
D. 6x2 + 13x + 4
Answer: A
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