Using suitable identities, find:
i) $(x y + 3 p)^{2}$
ii) $(2 x + 3 y)^{2}$

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Solution

Part $(i)$
$(x y + 3 p)^{2} = x^{2} y^{2} + 9 p^{2} + 6 x y p$

Part $(i i)$
$(2 x + 3 y)^{2} = 4 x^{2} + 9 y^{2} + 6 x y$

Hence, this is the answer.

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