If x−y=2 and xy=3, what is the value of the expression (x2+y2)2+4x2y – InterviewSolution

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1.	If x−y=2 and xy=3, what is the value of the expression (x2+y2)2+4x2y2−4xy(x2+y2).
Answer» If $x - y = 2$ and $x y = 3$ , what is the value of the expression $(x^{2} + y^{2})^{2} + 4 x^{2} y^{2} - 4 x y (x^{2} + y^{2}) .$

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