来自陈俊朴的问题
|x-1|+(x+y)2=0,则xy的值是______.
|x-1|+(x+y)2=0,则xy的值是______.
1回答
2020-04-26 10:45
|x-1|+(x+y)2=0,则xy的值是______.
|x-1|+(x+y)2=0,则xy的值是______.
∵|x-1|+(x+y)2=0,
∴x=1,y=-x=-1,
∴xy=-1.
故答案为-1.