(3m-1)^2-4m(2m-1)=1我哪儿错了?.(3m-1)^2-4m(2m-1)=1,9m^2+1-6m-(8m^

(3m-1)^2-4m(2m-1)=1我哪儿错了?.(3m-1)^2-4m(2m-1)=1,9m^2+1-6m-(8m^ (1m+3m+5m+...+2009m)-(2m+4m+6m+...=2008m) 已知m＞4,化简|m-4|+|7-2m|+|m×m-2m+1|-|m×m-2m-3| 计算2m+6/m²-4m+4·1/m+3·（m-2)(m+3)/m+3 化简2[（m-1)m+m(m+1)]乘【(m-1)m-m(m+1)) m-2m-3m+4m-5m-6m+7m.2004m=? (m+3m+5m.+2013m)-(2m+4m+6m+.+2012m)=? (m+3m+5m+...+2015m)-(2m+4m+6m+...+2014m)= 先化简 再求值（3+m)(3-m)+m(m-6)-7,其中m=1/2 (1)M^2+M-3M^2-5M+2M^2+4=?(M=-3/4) m²-4m+4/m²-1÷m-2/m+1+2/m-1,其中m=2 化简求值m^2(m+4)+2m(m^2 -1)-3m^3,其中m=2/5