计算：(m-1/m^2+3m+2)-(6/m^2-m-2)

来源：学生作业帮编辑：百度作业网作业帮分类：数学作业时间：2024/07/20 17:22:00

计算：(m-1/m^2+3m+2)-(6/m^2-m-2)
通分：x-2/4x^2-4x,x-1/x^2-2x,1/x^3-3x^2+2x

(m-1)/(m^2+3m+2)-6/(m^2-m-2)
=(m-1)/(m+1)(m+2)-6/(m+1)(m-2)
=(m-1)(m-2)/(m+1)(m+2)(m-2) -6(m+2)/(m+1)(m+2)(m-2)
=(m^2-3m+2-6m-12)/(m+1)(m+2)(m-2)
=(m^2-9m-10)/(m+1)(m+2)(m-2)
=(m+1)(m-10)/(m+1)(m+2)(m-2)
=(m-10)/(m+2)(m-2)
=(m-10)/(m^2-4)

计算:(m+3m+5m+...+2009m)-(2m+4m+6m+...+2010m) 计算2m+6/m²-4m+4·1/m+3·（m-2)(m+3)/m+3 计算：(m-1/m^2+3m+2)-(6/m^2-m-2) 计算：（m+3m+5m+…+2015m）-(2m+4m+6m+…+2014m)= 计算（m+3m+5m+.+2009m)-(2m+4m+6m+.+2010m)=多少计算：(m+3m+5m+…+2011m)-(2m+4m+6m+…+2010m)= 计算(m+3m+5m+...+2011m)-(2m+4m+6m+...+2010m)= (m+3m+5m+.+2008m)-(2m+4m+6m+.+2009m) (m+3m+5m+...+2009m)-(2m+4m+6m+...2008m) m-2m-3m+4m-5m-6m+7m.2004m=? (m+3m+5m+...+2013m)-(2m+4m+6m+...+2012m) (m+3m+5m.+2013m)-(2m+4m+6m+.+2012m)=?