Write two equivalent expressions for the opposite of the polynomial.3x3 - 2x2 - x + 7
A. -(3x3 - 2x2 - x + 7),
-3x3 - 2x2 - x + 7
B. (-3x3 - 2x2 - x + 7),
-3x3 - 2x2 - x + 7
C. -(3x3 - 2x2 - x + 7),
-3x3 + 2x2 + x - 7
D. None of these
Answer: C
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