化简:(a^3-a^2-a+1)/(a^3-3a^2+3a-1)
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化简:(a^3-a^2-a+1)/(a^3-3a^2+3a-1)化简:(a^3-a^2-a+1)/(a^3-3a^2+3a-1)化简:(a^3-a^2-a+1)/(a^3-3a^2+3a-1):(a^
化简:(a^3-a^2-a+1)/(a^3-3a^2+3a-1)
化简:(a^3-a^2-a+1)/(a^3-3a^2+3a-1)
化简:(a^3-a^2-a+1)/(a^3-3a^2+3a-1)
:(a^3-a^2-a+1)/(a^3-3a^2+3a-1)
=（a^2（a-1)-(a-1))/(a-1)^3
=((a-1)(a^2-1))/(a-1)^3
=(a-1)(a+1)/(a-1)^2
=(a+1)/(a-1)
[a/(a-1)+a/(a+2)](a+2)/(2a平方+3a+1)化简
(a 1)(a 2)(a 3)(a
(a+2)(a+1)-a(a-3)
化简(a+1)(a-2)/(a+2)(a-2)+3
化简 3a-[5a-(a+2)+a]-1
化简：a(a*a-1)+2a*a(a+1)-3a(2a-5)拜托了各位
化简; a-2a+3a-4a+5a-6a+``````-2006a+2007a.
化简：a-2a+3a-4a+5a-6a+.+2010a+2011a.
化简:(a^3-a^2-a+1)/(a^3-3a^2+3a-1)
(a^3 - a^2 - a + 1)/(a^3 - 3a^2 + 3a - 1) 化简.
化简1/(a+1)(a+2)+1/(a+2)(a+3)+...+1/(a+2010)(a+2011)
化简(a+ 3)(a-3) (a-5)(a+7)-2a(a-1)
化简2a(a·a-3a-1)a乘a
a(a-1)(a-2)(a-3)(a-4)因式分解
【1】a+a=a×a a= [ ]【2】a×a=a÷a a=[ ]【3】a×a=a－a a=[ ] [4]a－a=a＋a a=[ ]
(通分） a/a^a^a+3a+2 ,a/a^a+2a+1 ,-1/3a+6
（a-a/a+1)/(a*a-2a)*(a+1)/(a*a+3a+2)要详细的计算说明！
a+a+1+a+2+a+3+a+4+a+5+a+6+a+7.+a+2013+a+2014=?