15,已知(2a+b+3)^2+|b-1|=0,求代数式5a+{-2d-3[2b-8+(3a-2b+1)-a]+1}的值?

2024-12-21 20:22:20
推荐回答(1个)
回答1:

(2a+b+3)^2+|b-1|=0
2a+b+3=0,b-1=0
a=-2,b=1

5a+{-2b-3[2b-8+(3a-2b+1)-a]+1}
=-a-2b+22
=2-2+22
=22