Add the polynomials. Express your answer in standard form.(14mn4 + 3m2n2 + n4) + (2m2n2 - 7n4 - 6mn4)
A. 20mn4 - 5m2n2 - 6n4
B. 20mn4 + 5m2n2 + 6n4
C. 8mn4 + 5m2n2 - 6n4
D. 8mn4 + 5m2n2 - 8n4
Answer: C
Mathematics
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