1-4(4/1-m)=2
(1m+3m+5m+...+2009m)-(2m+4m+6m+...=2008m)
m²-4m+4/m²-1÷m-2/m+1+2/m-1,其中m=2
化简求值(m+2/m²-2m)-(m-1/m²-4m+4)÷(m-1/m) 其中m=4
已知m>4,化简|m-4|+|7-2m|+|m×m-2m+1|-|m×m-2m-3|
若(m)(m)-2m=1,则2m-4m+2008的值是-----------
(1)M^2+M-3M^2-5M+2M^2+4=?(M=-3/4)
2-m/4-m^2=1/()
(m+1)(m-1)(m-2)(m-4)
化简求值m^2(m+4)+2m(m^2 -1)-3m^3,其中m=2/5
若m合适根号(3m+1)(2-m)=根号(3m+1)乘根号(2-m),化简|m-4|+|3m+1|+|m-2|.
当m=1/2时,求15m²-9-{-4m²+[5m-8m²-(2m²-m)+9m
若已知m^2-4m*3=1,求1-m^2+4m