Simplify.(x - x2 + 5) + (3 - 5x2 + x3)
A. x3 - 6x2 + x + 8
B. x3 + 6x2 + x + 8
C. x3 - 6x2 + 8x
D. x3 - 4x2 + x - 8
Answer: A
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