5m^3+9m^2+9m+7

m-2m-3m+4m-5m-6m+7m-8m-9m+...+2002m-2003m-2004m求m的值 计算：m-2m-3m+4m-5m-6m+7m-8m-9m+...+2002m-2003m-2004m m-2m-3m+4m-5m-6m+7m-8m-9m+.+2002m-2003m-2004m 2m+3m+5m+7m+9m+…+2003m+2005m+2007m 3m^2-m-[7m-2(4m-5)++9m^2] m-2m-3m+4m-5m-6m+7m.2004m=? 5m^3+9m^2+9m+7 (m-3分之5m+m+3分之2m)*m分之m^2-9 计算(3m^2)^3-7m^3【m^3-m(4m^2+1)】等于 A.7m^3+9m^4 B.7m^4+48m^6 C.-7m^2+7m^4+31m^5 D.-7m^3-28m计算(3m^2)^3-7m^3【m^3-m(4m^2+1)】等于 A.7m^3+9m^4 B.7m^4+48m^6 C.-7m^2+7m^4+31m^5 D.-7m^3-28m^5-7m^6+27m^7 正确率一定要高! 计算(m+3m+5m+7m+.+2009m)-(2m+4m+6m+.+2008m) 计算(m+3m+5m+7m+.+2013m)-(2m+4m+6m+.+2012m) (m+3m+5m+7m+.+2009m)-(2m-4m-6m-.-2008m)=? (m+3m+5m+7m+.+2011m)-(2m+4m+6m+.+2010m) 要说理由! 当m=1/2时,求15m²-9-{-4m²+[5m-8m²-(2m²-m)+9m²]-3m} 计算(m^2-9)/[m(m-3)+m-3] 通分m-5/m^2-9与2/3-m 通分m-5/m^2-9与2/3-m. 1/m(m+1)+1/(m+1)(m+2)+1/(m+2)(m+3)+.+1/(m+9)(m+10)