só pra confirmar os sistemas:
-2y²-8xy+24y=0
-4xy-4x²+24x=0
==p1(0,0), p2(2,4)
9y+7y²-6xy=0
9x+14xy-3x²=0
==p1(0,0), p2(1,-3/7 )
6x-18-3y=0
2y-6-3x=0
==p(18,30)
Trivago
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Trivago