If x=210-8 and y=210+22, then (x-y)2=____________.

1.	If x=210-8 and y=210+22, then (x-y)2=____________.
Answer» If $x = \frac{2}{\sqrt{10} - \sqrt{8}} and y = \frac{2}{\sqrt{10} + 2 \sqrt{2}}, then {(x - y)}^{2} =____________.$

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