Question

Using identities find the following: (xy + 3z)²​

Answer 1

$\huge{\mathbb{\orange{ANSWER-}}}$$We\ can\ solve\ this\ by-\\{\boxed{(a+b)^2=a^2+b^2+2ab}}So,\\(xy+3z)^2=(xy)^2+(3q)^2+2(xy)(3z)\\\\=x^2y^2+9z^2+6xyz(ANSWER)$$\huge{\mathtt{\red{HOPE\ IT\ HELPS-}}}$

Answer 2

Answer:

(a+b)²=a²+2ab+b²

(xy+3z)²=(xy)²+2(xy)(3z)+(3z)²

=x²y²+6xyz+9z²

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