m+2>3,-1/2m
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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](/uploads/image/z/8530936-16-6.jpg?t=m%2B2%3E3%2C-1%2F2m)
m+2>3,所以m>1
-1/2m-0.1(当m>0)或者m
-1/2m-0.1(当m>0)或者m
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2[(m-1)m+m(m+1)]乘【(m-1)m-m(m+1))
(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)=?
(m+3m+5m+...+2014m)-(2m+4m+6m+...+2013m)
(m+3m+5m+...+2015m)-(2m+4m+6m+...+2014m)=
化简,:3(m-1)^2+(m+2)(m^2-2m+4)-m(m^2+3m-3)