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MATH / If x and y are positive real numbers for which (x+y)²+(x−y)²=10 and (x+y)⁴+(x−y)⁴=98, what is the value of xy? Express your answer in simplest radical form. · Discussion

Discussing If x and y are positive real numbers for which (x+y)²+(x−y)²=10 and (x+y)⁴+(x−y)⁴=98, what is the value of xy? Express your answer in simplest radical form. · MATH

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