x3次方+x2次方y-xy2次方-y3次方=0
x^3+x^2y-xy^2-y^3=0
x^3-y^3+xy(x-y)=0
(x-y)(x^2+xy+y^2)+xy(x-y)=0
(x-y)(x^2+2xy+y^2)=0
(x-y)(x+y)^2=0
x=y
32/2=x+y=2x
x=y=8
所以面积=8*8=64