(m+2+5/2-m)*2m-4/3-m
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(m+2+5/2-m)*2m-4/3-m(m+2+5/2-m)*2m-4/3-m(m+2+5/2-m)*2m-4/3-m原式=[(m+2)(m-2)-5]/(m-2)*[-2(m-2)/(m-3)]=
(m+2+5/2-m)*2m-4/3-m
(m+2+5/2-m)*2m-4/3-m
(m+2+5/2-m)*2m-4/3-m
原式=[(m+2)(m-2)-5]/(m-2)*[-2(m-2)/(m-3)]
=-(m²-9)/(m-2)*2(m-2)/(m-3)
=-(m+3)(m-3)/(m-2)*2(m-2)/(m-3)
=-2(m+3)
=-2m-6
计算:(m+3m+5m+...+2009m)-(2m+4m+6m+...+2008m)
(m+3m+5m+...+2009m)-(2m+4m+6m+...2008m)
(m+3m+5m+...+2014m)-(2m+4m+6m+...+2013m)
(m+3m+5m+...+2013m)-(2m+4m+6m+...+2012m)
(m+3m+5m+...+2015m)-(2m+4m+6m+...+2014m)=
计算:(m+3m+5m+...+2009m)-(2m+4m+6m+...+2010m)
m-2m-3m+4m-5m-6m+7m.2004m=?
(m+3m+5m.+2013m)-(2m+4m+6m+.+2012m)=?
计算:(m+3m+5m+…+2015m)-(2m+4m+6m+…+2014m)=
m-2m-3m+4m-5m-6m+7m-8m-9m+...+2002m-2003m-2004m求m的值
(m+3m+5m+...+2009m)-(2m+4m+...+2008m)怎么算
合并同类项m-2m+3m-4m+5m-.+2011m-2012m
m+3m+5m+...+2011m-2m-4m-...-2010m等于多少?
计算(m+3m+5m+7m+.+2009m)-(2m+4m+6m+.+2008m)
计算(m+3m+5m+7m+.+2013m)-(2m+4m+6m+.+2012m)
(m+3m+5m+7m+.+2009m)-(2m-4m-6m-.-2008m)=?
(m+3m+5m+7m+.+2011m)-(2m+4m+6m+.+2010m) 要说理由!
计算:m-2m-3m+4m-5m-6m+7m-8m-9m+...+2002m-2003m-2004m