x^2+2xy+y^2=64
(×+y)^2=64
x+y=8
x=8-y
3y-8-y-4=0
2y=4
y=2
8-2=6
ответ:x=6 y=2
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x^2+2xy+y^2=64
(×+y)^2=64
x+y=8
x=8-y
3y-8-y-4=0
2y=4
y=2
8-2=6
ответ:x=6 y=2