已知丨x+y-1丨+(x-y+3)²=0,求实数x,y的值

已知丨x+y-1丨+(x-y+3)²=0,求实数x,y的值
已知丨x+y-1丨+(x-y+3)²=0,求实数x,y的值

已知丨x+y-1丨+(x-y+3)²=0,求实数x,y的值
已知丨x+y-1丨+(x-y+3)²=0
则丨x+y-1丨=0,(x-y+3)²=0
x+y=1,x-y=-3
解方程组
x=-1
y=2