5p^2+q^2+4pq+7,3+9pq-2p^2q^q2
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Step-by-step explanation:
5p2q2+4pq+7,3+9pq−2p2q2
On adding the expressions, we have
= 5p2q24+4pq+7+3+9pq−2p2q2
= 5p2q2−2p2q2+4pq+9pq+7+3
= 3p2q2+13pq+10
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