已知,4X-4Y = 96 ,可得：X-Y = 24 ,
已知,X^2-Y^2 = (X+Y)(X-Y) = 960 ,可得：X+Y = 960/(X-Y) = 40 .
解方程组：X+Y = 40 ,X-Y = 24 ；
两式相加可得：2X = 64 ,解得：X = 32 ；
两式相减可得：2Y = 16 ,解得：Y = 8 .