m^8-7m^6+7m^2-1=0
m-2m-3m+4m-5m-6m+7m.2004m=?
(m+3m+5m+7m+.+2009m)-(2m-4m-6m-.-2008m)=?
m-2m-3m+4m-5m-6m+7m-8m-9m+.+2002m-2003m-2004m
先化简 再求值(3+m)(3-m)+m(m-6)-7,其中m=1/2
(m+3m5m+7m+.2009m)-(2m+4m+6m.2008m)
(m+3m+5m+7m+.+2011m)-(2m+4m+6m+.+2010m) 要说理由!
已知m>4,化简|m-4|+|7-2m|+|m×m-2m+1|-|m×m-2m-3|
已知m^2-7m+1=0,求m^2+1/m^2的值
已知m^2-3m-1=0 求m^3-m^2-7m+2008的值
先化简再求值:(3+m)(3-m)+m(m-6)-7,其中m=1/2
(1m+3m+5m+...+2009m)-(2m+4m+6m+...=2008m)
(3m+5)(-3m的平方+5)-m的平方(7m+8)(7m-8)+(2m+1)(-2m-1),其中m使(m-1)的0次