(1m+3m+5m+...+2009m)-(2m+4m+6m+...=2008m)guo cheng (bu zhou)
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(1m+3m+5m+...+2009m)-(2m+4m+6m+...=2008m)guocheng(buzhou)(1m+3m+5m+...+2009m)-(2m+4m+6m+...=2008m)gu
(1m+3m+5m+...+2009m)-(2m+4m+6m+...=2008m)guo cheng (bu zhou)
(1m+3m+5m+...+2009m)-(2m+4m+6m+...=2008m)
guo cheng (bu zhou)
(1m+3m+5m+...+2009m)-(2m+4m+6m+...=2008m)guo cheng (bu zhou)
(1m+3m+5m+...+2009m)-(2m+4m+6m+...+2008m)
=1m+3m+5m+...+2009m-2m-4m-6m-...-2008m
=1m+(3m-2m)+(5m-4m)+...+(2009m-2008m)
=1m×1005
=1005m
计算：（m+3m+5m+...+2009m)-(2m+4m+6m+...+2008m)
(m+3m+5m+...+2009m)-(2m+4m+6m+...2008m)
计算:(m+3m+5m+...+2009m)-(2m+4m+6m+...+2010m)
(m+3m+5m+...+2009m)-(2m+4m+...+2008m)怎么算
计算(m+3m+5m+7m+.+2009m)-(2m+4m+6m+.+2008m)
(m+3m+5m+7m+.+2009m)-(2m-4m-6m-.-2008m)=?
(m+3m+5m+.+2008m)-(2m+4m+6m+.+2009m)今天刚考完试,想确认一下,,我写的是2009(m+3m+5m+.+2009m)-(2m+4m+6m+.+2008m)
计算(m+3m+5m……+2009m)—(2m+4m+6m+2008m)=
计算（m+3m+5m+.+2009m)-(2m+4m+6m+.+2010m)=多少
(m+3m+5m+.+2009m)-(2m+4m+6m+.+2010m)等于多少请说明原因
(1m+3m+5m+...+2009m)-(2m+4m+6m+...=2008m)guo cheng (bu zhou)
m*m-5m-1=0则2m*m-5m+1/m*m
(m+3m+5m+...+2014m)-(2m+4m+6m+...+2013m)
(m+3m+5m+...+2013m)-(2m+4m+6m+...+2012m)
(m+3m+5m+...+2015m)-(2m+4m+6m+...+2014m)=
m-2m-3m+4m-5m-6m+7m.2004m=?
(m+3m+5m.+2013m)-(2m+4m+6m+.+2012m)=?
计算:(m+3m+5m+.+2009m)-(2m+4m+6m+.+2008）帮帮忙呀!