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