(2m+3)^2=2(4m+7)怎么算?
(m+3m+5m+...+2009m)-(2m+4m+...+2008m)怎么算
m-2m-3m+4m-5m-6m+7m.2004m=?
(m+3m+5m+7m+.+2009m)-(2m-4m-6m-.-2008m)=?
(m+3m+5m.+2013m)-(2m+4m+6m+.+2012m)=?
(m+3m+5m+...+2015m)-(2m+4m+6m+...+2014m)=
计算:(m+3m+5m+…+2015m)-(2m+4m+6m+…+2014m)=
(m+3m5m+7m+.2009m)-(2m+4m+6m.2008m)
已知m>4,化简|m-4|+|7-2m|+|m×m-2m+1|-|m×m-2m-3|
(m+3m+5m+7m+.+2011m)-(2m+4m+6m+.+2010m) 要说理由!
m-2m-3m+4m-5m-6m+7m-8m-9m+.+2002m-2003m-2004m
(6m的平方-4m-3)+(2m的平方-4m+1)怎么算?
{|3m-m|/√2}^2+(√7)^2=(3m)^2 怎么算