已知m^2-5m-1=0,2m^2-5m+1/m^2=?

m*m-5m-1=0则2m*m-5m+1/m*m 已知m*m+m-1=0,求m*m*m+2m*m-2005 已知m^2-5m+1=0,求m^3+1/m^3 和m-1/m的值 已知m^2-5m-1=0,求(m^4+1)/m^2的值 (m+3m+5m+...+2015m)-(2m+4m+6m+...+2014m)= m-2m-3m+4m-5m-6m+7m.2004m=? (m+3m+5m.+2013m)-(2m+4m+6m+.+2012m)=? 已知m²-5m-1=0,求2m²-5m+m²／1=?已知m²-5m-1=0,求2m²-5m+1／m²=？ 已知m^2-5m-1=0,则2m^2-5m+1/2m^2 已知m^2-5m-1=0,则2m^2-5m+1/m^2=? 已知m^2-5m-1=0,2m^2-5m+1/m^2=? 已知m^2-5m-1=0,则2m^2-5m+（1/m^2） 已知m^2-5m-1=0,求2m^2-5m+（1/m）这道题能做吗 已知m^2-5m-1=0,求3m^2-10m+1/m^2 已知m²-5m-1=0,求2m²-5m+1/m²=? 已知m²-5m-1=0,z则2m²-5m+1/m²=? 已知m²-5m-1=0,则2m²-5m+1/m²= 已知m²-5m-1=0,则2m²-5m+1分之m²=?