更新时间2018-10-01 07:18:19
原式
=[25-(15-4+14)]÷(-5)
=0÷(-5)
=0
解:根据题意
[(-5)^2-(5/8-1/6+7/12)*24]/(-5)
=(-5)-5/8*24/(-5)+1/6*24/(-5)-7/12*24/(-5)
=-5+3-4/5+14/5
=-2+10/5
=-2+2
=0
[(-5)^2-(5/8-1/6+1/12)*24]/(-5)
=(25-5/8*24+1/6*24-1/24*12)/(-5)
=(25-15+4-2)/(-5)
=-12/5
[(-5)²-(5/8-1/6+7/12)×24]÷(-5)
=[25-(15-4+14)]÷(-5)
=(25-25)÷(-5)
=0
应该就是零的了
(8分之5减6分之1加12分之7)等于12分之13,再乘上24等于26
负5的2次方等于25,25减去26等于-1
-1除以-5等于5分之一