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40 x^2 - 18 x y - 702 x + 120 y^2 - 78 y - 1521 = 0 ; 351-40x+9y = 0
40 x^2 - 18 x y - 702 x + 120 y^2 - 78 y - 1521 = 0 ; 351-40x+9y = 0
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