m^2-3m+2/m-1·m^2-1/m^2-4

已知m＞4,化简|m-4|+|7-2m|+|m×m-2m+1|-|m×m-2m-3| m^2+m-6/m^2+2m+1÷m+3/m^+m·m^2-1/2-m 其中m=-1/2 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 计算2m+6/m²-4m+4·1/m+3·（m-2)(m+3)/m+3 m(m+1)(m+2)(m+3)+1? 1/m(m+1)+1/(m+1)(m+2)+1/(m+2)(m+3)+.+1/(m+9)(m+10) m^2-3m+2/m-1·m^2-1/m^2-4 已知m·m+m-1=0,则m^3+2m^2+2004=? 计算M-M^2/M^2-1*M-1/M除以(M-1/M+1)^2 解方程 2m-m*m 1=2(m*m-2m)(m*m-2m) 因式分解m^2(m+1)-(m-1) m^2(m+1)-m-1 因式分解 化简|m|+|m-1|+|m-2| 计算:(2m+1)(2m-1)-m·(3m-2) ；因式分解:n^2(m-2)+4(2-m) (m+m^-1+2)/(m^-1/2+m^1/2)*(m^-2/3-m3/2)/(m+m^-1+1) 化简,:3(m-1)^2+(m+2)(m^2-2m+4)-m(m^2+3m-3) 已知m>4,化简:|m-4|+|7-2m|+|m^2-2m+1|-|m^2-2m-3|