2012^2+2014^2-2/2013^2=

来源：学生作业学帮网编辑：学帮网时间：2024/07/02 22:28:37

(2012^2+2014^2-2)/2013^2
=(2012²-1+2014²-1)/2013²
=[(2012-1)(2012+1)+(2014-1)(2014+1)]/2013²
=(2011×2013+2013×2015)/2013²
=2013×(2011+2015)/2013²
=4026/2013
=2