Ответ:
1.
{x^2+y=0
y=x-2}
{x^2+x-2=0
D=1-4*1*(-2)=9
x1= = -1 - √9:2·1 = -1 - 3:2 =-4:2 = -2
х2= -1 + √9:2·1 = -1 + 3:2 = 2:2 = 1
2. {y^2-x=0
x=y+6}
{y^2+y-6=0
D=1^2 - 4·1·(-6) = 1 + 24 = 25
x1 = -1 - √25:2·1 = -1 - 5: 2 = -6 :2 = -3
x2 = -1 + √25:2·1 = -1 + 5: 2 = 4: 2 = 2
Пошаговое объяснение:
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Answers & Comments
Ответ:
1.
{x^2+y=0
y=x-2}
{x^2+x-2=0
y=x-2}
D=1-4*1*(-2)=9
x1= = -1 - √9:2·1 = -1 - 3:2 =-4:2 = -2
х2= -1 + √9:2·1 = -1 + 3:2 = 2:2 = 1
2. {y^2-x=0
x=y+6}
{y^2+y-6=0
x=y+6}
D=1^2 - 4·1·(-6) = 1 + 24 = 25
x1 = -1 - √25:2·1 = -1 - 5: 2 = -6 :2 = -3
x2 = -1 + √25:2·1 = -1 + 5: 2 = 4: 2 = 2
Пошаговое объяснение: