初二下数学题-4m^3+14m^2-6m,悬赏20分,急用,坐等
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/06 01:54:49
初二下数学题-4m^3+14m^2-6m,悬赏20分,急用,坐等
![初二下数学题-4m^3+14m^2-6m,悬赏20分,急用,坐等](/uploads/image/z/17683599-39-9.jpg?t=%E5%88%9D%E4%BA%8C%E4%B8%8B%E6%95%B0%E5%AD%A6%E9%A2%98-4m%5E3%2B14m%5E2-6m%2C%E6%82%AC%E8%B5%8F20%E5%88%86%2C%E6%80%A5%E7%94%A8%2C%E5%9D%90%E7%AD%89)
-4m^3+14m^2-6m
=-2m(2m^2-7m+3)
=-2m(2m-1)(m-3)
=-2m(2m^2-7m+3)
=-2m(2m-1)(m-3)
(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)=
(m+3m5m+7m+.2009m)-(2m+4m+6m.2008m)
(m+3m+5m+7m+.+2009m)-(2m-4m-6m-.-2008m)=?
(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