Subtract 3pq - 7p 2 + 8q 2from 9p2- 5q 2 + 10pq
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Answer:
9p2 - 5q2 + 10pq - ( 3pq - 7p2 + 8q2)
= 9p2 - 5q2 + 10pq - 3pq + 7p2 - 8q2
= 9p2 - 8p2 - 5q2 + 7p2 +10pq - 3pq
= p2 + 3q2 + 7pq
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Answer:
10pq+3pq=13pq
-5q2 -7q2= -12q2
9q2+8q2= +17q2
Then -12q2+17q2=+5q2.Because( -+ ) = - and +17 is greater than -12
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