x^-2xy+y^-x+y-2=0
(x-y)^2-(x-y)-2=0
(x-y+1)(x-y-2)=0
x-y=-1
x-y=2
又周长=2(x+y)=16
x+y=8
联立方程组得
x-y=-1
x+y=8
解x=3.5 y=4.5
x-y=2
x+y=8
x=5
y=3
只有这组解满足都是整数
面积=3*5=15
x^-2xy+y^-x+y-2=0
(x-y)^2-(x-y)-2=0
(x-y+1)(x-y-2)=0
x-y=-1
x-y=2
又周长=2(x+y)=16
x+y=8
联立方程组得
x-y=-1
x+y=8
解x=3.5 y=4.5
x-y=2
x+y=8
x=5
y=3
只有这组解满足都是整数
面积=3*5=15