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Question

Add the following:
2p2q2−3pq+4,5+7pq−3p2q2

A
p2q24pq+9
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B
p2q2+4pq+9
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C
p2q2+2pq9
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D
None of these
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Solution

The correct option is B p2q2+4pq+9
2p2q23pq+4+5+7pq3p2q2

=2p2q23p2q23pq+7pq+9

=p2q2+4pq+9

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