4(m+1)^2-(1+2m)(2m-1)
已知m>4,化简|m-4|+|7-2m|+|m×m-2m+1|-|m×m-2m-3|
化简2[(m-1)m+m(m+1)]乘【(m-1)m-m(m+1))
(m+1)(m-1)(m-2)(m-4)
(1m+3m+5m+...+2009m)-(2m+4m+6m+...=2008m)
化简:2{(m-1)m+m(m+1)}{(m-1)m-m(m+1)}.若m是任意整数.
化简:|m|+|m-1|+|m-2|.
m²-4m+4/m²-1÷m-2/m+1+2/m-1,其中m=2
已知m>4,化简:|m-4|+|7-2m|+|m^2-2m+1|-|m^2-2m-3|
化简,:3(m-1)^2+(m+2)(m^2-2m+4)-m(m^2+3m-3)
计算2m+6/m²-4m+4·1/m+3·(m-2)(m+3)/m+3
化简:m+|(1+m^2-2m)/(m-1)|
分式m-m^2分之m^2-2m+1