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2x2 plus y2 - xy equals 21?

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Anonymous

∙ 15y ago
Updated: 8/17/2019

if you meant 2x²+y²-xy=21

x=(±sqrt(-7 y^2+168)+y)/4
y=(±sqrt(-7 x^2+84)+x)/2

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Wiki User

∙ 15y ago
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