7(m+1)^2-3(2m+1)(2m-1)
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7(m+1)^2-3(2m+1)(2m-1)7(m+1)^2-3(2m+1)(2m-1)7(m+1)^2-3(2m+1)(2m-1)原式=7(m²+2m+1)-3(4m²-1)=7
7(m+1)^2-3(2m+1)(2m-1)
7(m+1)^2-3(2m+1)(2m-1)
7(m+1)^2-3(2m+1)(2m-1)
原式=7(m²+2m+1)-3(4m²-1)
=7m²+14m+7-12m²+3
=-5m²+14m+4
=7(m²+2m+1)-3(4m²-1)
=7m²+14m+7-12m²+3
=-5m²+14m+10
已知m>4,化简|m-4|+|7-2m|+|m×m-2m+1|-|m×m-2m-3|
已知m>4,化简:|m-4|+|7-2m|+|m^2-2m+1|-|m^2-2m-3|
m-2m-3m+4m-5m-6m+7m.2004m=?
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
m(m+1)(m+2)(m+3)+1?
3(m+1)^2+4(m+1)(m-1)-7m(m-1)
先化简 再求值(3+m)(3-m)+m(m-6)-7,其中m=1/2
1/m(m+1)+1/(m+1)(m+2)+1/(m+2)(m+3)+.+1/(m+9)(m+10)
m-2m-3m+4m-5m-6m+7m-8m-9m+...+2002m-2003m-2004m求m的值
m^2+m-6/m^2+2m+1÷m+3/m^+m·m^2-1/2-m 其中m=-1/2
先化简再求值(3m²+5)(-3m²+5)-m²(7m+8)(7m+8)+(2m+1)(-2m-1),其中m=-1
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)
计算(m+3m+5m+7m+.+2009m)-(2m+4m+6m+.+2008m)
计算(m+3m+5m+7m+.+2013m)-(2m+4m+6m+.+2012m)
(m+3m+5m+7m+.+2009m)-(2m-4m-6m-.-2008m)=?
(m+3m+5m+7m+.+2011m)-(2m+4m+6m+.+2010m) 要说理由!