(1-3m)/2+(2m+5)/3-(3-2m)/4,其中m=2
m-2m-3m+4m-5m-6m+7m.2004m=?
(m+3m+5m.+2013m)-(2m+4m+6m+.+2012m)=?
(m+3m+5m+...+2015m)-(2m+4m+6m+...+2014m)=
化简求值m^2(m+4)+2m(m^2 -1)-3m^3,其中m=2/5
(1-3m)/2+(2m+5)/3-(3-2m)/4,其中m=2
(1m+3m+5m+...+2009m)-(2m+4m+6m+...=2008m)
(m+3m+5m+.+2008m)-(2m+4m+6m+.+2009m)
(m+3m+5m+...+2009m)-(2m+4m+6m+...2008m)
计算:(m+3m+5m+...+2009m)-(2m+4m+6m+...+2010m)
(m+3m+5m+...+2013m)-(2m+4m+6m+...+2012m)
(m+3m+5m+...+2014m)-(2m+4m+6m+...+2013m)
(m+3m+5m+7m+.+2009m)-(2m-4m-6m-.-2008m)=?