Question

решите систему уравнений
х^2-у = 8
у+х=-2

Answer 1

x^2-y=8
y+x=-2
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x^2-y=8
x=-2-y
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(-2-y)^2-y=8
x=-2-y
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4+4y+y^2-y=8
x=-2-y
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y^2+3y-4=0
x=-2-y
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y1=-4; y2=1
x=-2-y
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y1=-4; y2=1
x1=2; x2=-3
ответ: (2; -4) (-3; 1)