Question

5,7,7,9算24点

Answer 1

(5+7)X(9-7)=24

用到阶乘的：

[(9-7)+(7-5)]!=24

(7-7)+(9-5)!=24

[(7-5)的(9-7)次方]!=24

对数再阶乘的：

【log(7-5)为底(9+7)的对数】!=24