Add or subtract as indicated.(-6x3 + 9x2 + 4) - (-5x3 + 2x - 5)

A. -x6 + 9x4 - 2x2 + 9
B. -11x3 + 9x2 + 2x - 1
C. -x3 + 9x2 + 2x - 1
D. -x3 + 9x2 - 2x + 9


Answer: D

Mathematics

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