化简|m+2|-|-m-1|
化简:2[(m-1)m+m(m+1)][(m-1)m-m(m+1)]
化简2[(m-1)m+m(m+1)]乘【(m-1)m-m(m+1))
化简:2{(m-1)m+m(m+1)}{(m-1)m-m(m+1)}.若m是任意整数.
已知m>4,化简|m-4|+|7-2m|+|m×m-2m+1|-|m×m-2m-3|
化简:|m|+|m-1|+|m-2|.
化简:m+|(1+m^2-2m)/(m-1)|
化简 |m|+| (2+m-m^2) 除以(m+1) |
化简|6-m|-|2m+1|+|m+5| (m
m²-2m=1 2m²-4m+2010
3(m-1)²+(m+2)(m²-2m+4)-m(m²+3m-3)
2m+m²-3/2m(m²-1)是如何化简成m-2/2m²+2m