Объяснение:
x+y=1
y^2+y^2+2xy+x^2=65
y^2+(x+y)^2=65
y^2+1=65
y^2=64
y=8; -8
x= -7 ; y=8
x=9 ; y=-8
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Объяснение:
x+y=1
y^2+y^2+2xy+x^2=65
x+y=1
y^2+(x+y)^2=65
x+y=1
y^2+1=65
y^2=64
y=8; -8
x= -7 ; y=8
x=9 ; y=-8