Expanded Form of (7p -9q)2
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Answered by
0
Answer:
(7p)² +(9q)2 - 2 (7p)(9q)
49p²+81q²-126pq
Step-by-step explanation:
Answered by
1
Step-by-step explanation:
(7p-9q)²
= (7p)²-2.7p.9q+(9q)²
=49p²-126pq+81q²
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