(4pq+3q)2-(4pq-3q)2

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- 2 answers
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Yogita Ingle 7 years, 1 month ago
(4pq + 3q)2 - (4pq - 3q)2
= [(4pq + 3q)+ (4pq -3q)][(4pq + 3q)- (4pq -3q)] [∵ a2 - b2 = (a+b) (a-b)]
= [4pq + 3q + 4pq - 3q][4pq + 3q- 4pq + 3q ]
= [8pq][6q]
= 48p2q
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