Решите систему пжлст 9 класс)
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{x-2y²=2 {3x+y=7⇒y=7-3x x-2(7-3x)²=2 x-98+84x-18x²-2=0 18x²-85x+100=0 D=7225-7200=25 x1=(85-5)/36=20/9⇒y1=7-60/9=1/3 x2=(85+5)/36=5/2⇒y2=7-15/2=-1/2 (20/9;1/3);(5/2;-1/2)