Ответ:
x,y=(3;-1)
Объяснение:
x^2-y^2=8
x=4+y
(4+y)^2 -y^2=8
y=-1
x=4-1
x=3
г)
x^2+y^2=5
x=-3-y
(-3-y)^2 +y^2=5
y=-2
x=-3-(-2)
x=-3-(-1)
x=-1
x=-2
x1,y1=(-1;-2)
x2,y2=(-2;-1)
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Ответ:
x,y=(3;-1)
Объяснение:
x^2-y^2=8
x=4+y
(4+y)^2 -y^2=8
y=-1
x=4-1
x=3
г)
x^2+y^2=5
x=-3-y
(-3-y)^2 +y^2=5
y=-2
y=-1
x=-3-(-2)
x=-3-(-1)
x=-1
x=-2
x1,y1=(-1;-2)
x2,y2=(-2;-1)