(M-1/M^2+6M+9)+(M-3/M^2+4M+3)怎么化简

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(M-1/M^2+6M+9)+(M-3/M^2+4M+3)怎么化简
(M-1/M^2+6M+9)+(M-3/M^2+4M+3)怎么化简

(M-1/M^2+6M+9)+(M-3/M^2+4M+3)怎么化简
(M-1/M^2+6M+9)+(M-3/M^2+4M+3)
=(m-1)/(m+3)²+(m-3)/(m+3)(m+1)
={(m-1)(m+1)+(m-3)(m+3)}/(m+3)²(m+1)
=(m²-1+m²-9)/(m+3)²(m+1)
=2(m²-5)/(m+3)²(m+1)

原式=(M-1)/(M+3)²+(M-3)/(M+1)(M+3)
=(M²-1+M²-9)/(M-1)(M+3)(M-3)
=(2M²-10)/)M³-M²-9M-9)

m-2m-3m+4m-5m-6m+7m-8m-9m+...+2002m-2003m-2004m求m的值 计算：m-2m-3m+4m-5m-6m+7m-8m-9m+...+2002m-2003m-2004m m-2m-3m+4m-5m-6m+7m-8m-9m+.+2002m-2003m-2004m 1/m(m+1)+1/(m+1)(m+2)+1/(m+2)(m+3)+.+1/(m+9)(m+10) 计算：（m+3m+5m+...+2009m)-(2m+4m+6m+...+2008m) (m+3m+5m+...+2009m)-(2m+4m+6m+...2008m) (m+3m+5m+...+2014m)-(2m+4m+6m+...+2013m) (m+3m+5m+...+2013m)-(2m+4m+6m+...+2012m) (m+3m+5m+...+2015m)-(2m+4m+6m+...+2014m)= 计算:(m+3m+5m+...+2009m)-(2m+4m+6m+...+2010m) m-2m-3m+4m-5m-6m+7m.2004m=? (m+3m+5m.+2013m)-(2m+4m+6m+.+2012m)=? (M-1/M^2+6M+9)+(M-3/M^2+4M+3)怎么化简 √(3m+1)(2-m)=√3m+1×√2-m成立时|m-4|√9m^2 6m+1+|m-2|化简 m^2+m-6/m^2+2m+1÷m+3/m^+m·m^2-1/2-m 其中m=-1/2 计算2m+6/m²-4m+4·1/m+3·（m-2)(m+3)/m+3 计算(3m^2)^3-7m^3【m^3-m(4m^2+1)】等于 A.7m^3+9m^4 B.7m^4+48m^6 C.-7m^2+7m^4+31m^5 D.-7m^3-28m计算(3m^2)^3-7m^3【m^3-m(4m^2+1)】等于 A.7m^3+9m^4 B.7m^4+48m^6 C.-7m^2+7m^4+31m^5 D.-7m^3-28m^5-7m^6+27m^7 正确率一定要高! 计算(m+3m+5m+7m+.+2009m)-(2m+4m+6m+.+2008m)