已知2^m=a,化简16×2^2m-1 ×2^3m-1 -4^m ×8^m
已知2^m=a,化简16×2^2m-1 ×2^3m-1 -4^m ×8^m
已知m>4,化简|m-4|+|7-2m|+|m×m-2m+1|-|m×m-2m-3|
已知m>4,化简:|m-4|+|7-2m|+|m^2-2m+1|-|m^2-2m-3|
(1m+3m+5m+...+2009m)-(2m+4m+6m+...=2008m)
化简2[(m-1)m+m(m+1)]乘【(m-1)m-m(m+1))
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m²+2m+1=0,求m³+2m²+3m
化简,:3(m-1)^2+(m+2)(m^2-2m+4)-m(m^2+3m-3)
若已知m^2-4m*3=1,求1-m^2+4m
已知 4^m×8^m-1÷2^m=512 求 m的值