作业帮若a=(-2)²,b=-（-3）³,c=-（-4）²,则-[a-(b+c)]=
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/28 19:36:16
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若a=(-2)²,b=-（-3）³,c=-（-4）²,则-[a-(b+c)]=
若a=(-2)²,b=-（-3）³,c=-（-4）²,则-[a-(b+c)]=
若a=(-2)²,b=-（-3）³,c=-（-4）²,则-[a-(b+c)]=
a=(-2)²=4
b=-（-3）³=27
,c=-（-4）²=-16
∴-[a-(b+c)]
=-a+b+c
=-4+27-16
=7