Verify That-
(11pq + 4q )^2 - (11pq - 4q )^2 = 176 pq^2
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Step-by-step explanation:
(11pq +4q)²-(11qp - 4q)²
=(11pq)²+2(11pq)(4q)+(4q)²-(11pq)²+2(11pq)(49)
(4q)²
=2(11pq) (4q)+2(11pq)(4q)
=88 pq² + 88 pq²
=176 pq²