Add.2p2q2 + 3p2q - 7pq and 7p2q2 - 2p2q + 7pq - 4

A. 9p2q2 + 5p2q + 14pq + 4
B. 9p2q2 + p2q - 14pq - 4
C. 9p2q2 + p2q - 4
D. 9p2q2 + 5p2q - 14pq - 4


Answer: C

Mathematics

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