问题标题:
用5,-5,5,-1算24,用1,-2,-2,3算24(可用加减乘除和乘方)急求!
问题描述:

用5,-5,5,-1算24,用1,-2,-2,3算24(可用加减乘除和乘方)急求!

陈小冬回答:
  (5-(-1)/(-5))*5=24   (-2)^3*(-2-1)=24
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