m+2>3,-1/2m
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m+2>3,-1/2m
m+2>3,-1/2m<5,化简绝对值m+2-绝对值1-+绝对值m得
m+2>3,-1/2m
m+2>3,所以m>1
-1/2m<5,所以m>-0.1(当m>0)或者m<-0.1(当m<0)
综上:m>1
所以化简|m+2|-|1-m|+|m|=m+2-(m-1)+m=m+1
已知m>4,化简|m-4|+|7-2m|+|m×m-2m+1|-|m×m-2m-3|
m(m+1)(m+2)(m+3)+1?
1/m(m+1)+1/(m+1)(m+2)+1/(m+2)(m+3)+.+1/(m+9)(m+10)
m^2+m-6/m^2+2m+1÷m+3/m^+m·m^2-1/2-m 其中m=-1/2
m*m-5m-1=0则2m*m-5m+1/m*m
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)=?
已知m*m+m-1=0,求m*m*m+2m*m-2005
(m+m^-1+2)/(m^-1/2+m^1/2)*(m^-2/3-m3/2)/(m+m^-1+1)
化简,:3(m-1)^2+(m+2)(m^2-2m+4)-m(m^2+3m-3)
已知m>4,化简:|m-4|+|7-2m|+|m^2-2m+1|-|m^2-2m-3|
计算2m+6/m²-4m+4·1/m+3·(m-2)(m+3)/m+3