额,紧急
(x-y))(x-y)=(|x|+|y|))(|x|+|y|)-4xy
16 =49-4xy
xy=33/4
(x+y)(x-y)=(|x|+|y|))(|x|+|y|)-2xy
4(x+y)=49-2*33/4
x+y =65/8
后面你在看。。
X=Y+4 代入 |x|+|y|=7
x=11/2 y=3/2