问题
解答题
若|a-3|+(5+b)2+
|
答案
∵|a-3|≥0,(5+b)2≥0,
≥0,c+1
且|a-3|+(5+b)2+
=0,c+1
∴a-3=0,5+b=0,c+1=0
∴a=3,b=-5,c=-1
∴
=a b+c
=-3 -5-1
.1 2
若|a-3|+(5+b)2+
|
∵|a-3|≥0,(5+b)2≥0,
≥0,c+1
且|a-3|+(5+b)2+
=0,c+1
∴a-3=0,5+b=0,c+1=0
∴a=3,b=-5,c=-1
∴
=a b+c
=-3 -5-1
.1 2