Add or subtract as indicated. Express the answer as a single polynomial in standard form.(5x8 + 13x6 - 11x3 + 6) - (2x8 - 9x5 + 3x3 - 4)
A. 3x8 + 13x6 + 9x5 - 14x3 + 10
B. -3x8 + 13x6 - 9x5 - 14x3 + 10
C. -3x8 + 13x6 + 9x5 - 14x3 + 10
D. 3x8 + 13x6 - 9x5 - 14x3 + 10
Answer: A
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