问题:
已知实数a、b、c满足
1
2
|a-b|+
2b+c
+c2-c+
1
4
=0,则a(b+c)=______.
已知实数a、b、c满足
|a-b|+
+c2-c+
=0,则a(b+c)=______.
1 |
2 |
2b+c |
1 |
4 |
参考答案: