191问答库 > 根号下a+b+5+丨2a-b+1丨=0，则（b-a）的2017次方等于？

根号下a+b+5+丨2a-b+1丨=0，则（b-a）的2017次方等于？

2025-03-16 03:18:42
推荐回答（1个）
回答1：

绝对值项、算术平方根均恒非负，因此只有
a+b+5=0
2a-b+1=0
解得a=-2，b=-3
(b-a)²⁰¹⁷
=[(-3)-(-2)]²⁰¹⁷
=(-1)²⁰¹⁷
=-1

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