(7p-2q)2
solve by using their identities
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Answer:
By the identity ( a + b) ^2
( 7p - 2q )^2
= ( 7p )^2 + ( 2q )^2 - 2* 7p *2q
= 49 p^2 + 4q^2 - 28pq
MARK AS BRAINLIST.....
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Hope it helps úh
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