5m²-22m+25=169
5m²-22m+25=169
m-2m-3m+4m-5m-6m+7m.2004m=?
(m+3m+5m.+2013m)-(2m+4m+6m+.+2012m)=?
(m+3m+5m+...+2015m)-(2m+4m+6m+...+2014m)=
已知m+1/m=5,求m²+1/m²,m的4次+1/m的四次!
当m=1/2时,求15m²-9-{-4m²+[5m-8m²-(2m²-m)+9m
m³+2m²=m+m² m(m²+m)+m²拆开后应为m³+
(m+3m+5m+7m+.+2009m)-(2m-4m-6m-.-2008m)=?
计算 1/(m²-m)+(m-5)/(2m²-2)=?
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)=