X=y-8 (y-8)*y+7=0 y^2-8y+7=0 D=64-28=36 x1=(8+6)/2=7 x2=(8-6)/2=1 y-8=7 y1=15 y-8=1 y2=9 Ответ: x1=7;y1=15, x2=1;y2=9