2.5m=2.5mx100=250m 2.5m=2.5x100cm=250m 2.5m=2.5mx(100cm/1m)=250m 2.5m=2.5x100=250cm

2.5m=2.5mx100=250m 2.5m=2.5x100cm=250m 2.5m=2.5mx(100cm/1m)=250m 2.5m=2.5x100=250cm 下列单位换算正确的是A,1.5m=1.5x100=150cm B,1.5m=1.5mx100=150cm C,1.5m=1.5x100cm=150cm D,D,1.5m=1.5m乘100cm=150cm这是一道物理题， 化简并求值 m*m*m-2m*m+m除以m*m*m-m 其中m=2011 (m+3m+5m+...+2015m)-(2m+4m+6m+...+2014m)= m-2m-3m+4m-5m-6m+7m.2004m=? (m+3m+5m.+2013m)-(2m+4m+6m+.+2012m)=? 已知m*m+m-1=0,求m*m*m+2m*m-2005 m*m-5m-1=0则2m*m-5m+1/m*m 解方程 2m-m*m 1=2(m*m-2m)(m*m-2m) (m+3m+5m+7m+.+2009m)-(2m-4m-6m-.-2008m)=? m²-m/m+2=_____. 7m-2.5m=13. 问下,当m=2.5时,求下列式子的值.m²+3m*2 （m²就是m的平方【即二次方】,就是m*m）化到最简形式,本人做到一半不会化简~m²+3m*2 =m²+6m=?（m²+6m还能化简么?怎样化简? m^2+m+()+()=3m-2m 已知m的绝对值=-m 化简|m|-|m-2| 伞齿轮M=2.5, 计算(m+3m+5m……+2009m)—(2m+4m+6m+2008m)= 计算：（m+3m+5m+…+2015m）-(2m+4m+6m+…+2014m)=