Question

Please solve this sum.....

Answer 1

$\huge\bold\color {green}{Hello \: Friend \: !!}$


$\red {\bold {Here \: is \: your \: answer }}$


$\underline\bold {Answer : x^{2}y^{2} \: + \: 4xyz \: + \: 4z^{2}}$


$\bold {\huge{Solution :}}$


$( \: xy \: + \: 2xy \: )^{2} \\ \\ ( \: a \: + \: b \: )^{2} \: = \: a^{2} \: + \: 2ab \: + \: b^{2} \\ \\ ( \: xy \: + \: 2xy \: )^{2} \: = \: ( \: xy \: )^{2} \: + \: 2 \: \times \: xy \: \times \: 2z \: + \: ( \: 2z \: )^{2} \\ \\ ( \: xy \: + \: 2xy \: )^{2} \: = \: x^{2}y ^{2} \: + \: 4xyz \: + \: 4z^{2}$


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