Identify the like terms in the polynomial.7z3 - 6z4 - 8z2 + 4z4 + 6z3 + 9
A. -6z4 and 4z4; 7z3 and 6z3
B. None of the terms are like.
C. -6z4 and 4z4; 7z3 and 6z3; -8z2 and 9
D. z4, z3, z2, and 9
Answer: A
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