(p+q)² - (p - q)²simplify by using algebraic identities. – InterviewSolution

1.	(p+q)² - (p - q)²simplify by using algebraic identities.
Answer» 4pqStep-by-step explanation:a^2-b^2 = (a+b)(a-b)USING the above IDENTITY,(p+q)^2 - (p-q)^2= (p+q+p-q)(p+q-(p-q))= (2p)(p+q-p+q)= 2p (2Q)= 4PQ

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