12(m-1\3-3m\4)-(2m+1)
已知m>4,化简|m-4|+|7-2m|+|m×m-2m+1|-|m×m-2m-3|
(1m+3m+5m+...+2009m)-(2m+4m+6m+...=2008m)
化简,:3(m-1)^2+(m+2)(m^2-2m+4)-m(m^2+3m-3)
计算2m+6/m²-4m+4·1/m+3·(m-2)(m+3)/m+3
已知m>4,化简:|m-4|+|7-2m|+|m^2-2m+1|-|m^2-2m-3|
先化简再求值m^2(m+3)+2m(m^2-1)-(m^4+m^3-m^2)/1/3m其中m等于2013
(m+3m+5m+.+2008m)-(2m+4m+6m+.+2009m)
(m+3m+5m+...+2009m)-(2m+4m+6m+...2008m)
m-2m-3m+4m-5m-6m+7m.2004m=?
计算:(m+3m+5m+...+2009m)-(2m+4m+6m+...+2010m)
(m+3m+5m+...+2013m)-(2m+4m+6m+...+2012m)
(m+3m+5m.+2013m)-(2m+4m+6m+.+2012m)=?