[(3a-12)/(a^2-4a+4)]/[(a-4)/(a^2-4)]*[(10+3a-a^2)/(2+a-a^2)]

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[(3a-12)/(a^2-4a+4)]/[(a-4)/(a^2-4)]*[(10+3a-a^2)/(2+a-a^2)][(3a-12)/(a^2-4a+4)]/[(a-4)/(a^2-4)]*[(1

[(3a-12)/(a^2-4a+4)]/[(a-4)/(a^2-4)]*[(10+3a-a^2)/(2+a-a^2)]
[(3a-12)/(a^2-4a+4)]/[(a-4)/(a^2-4)]*[(10+3a-a^2)/(2+a-a^2)]

[(3a-12)/(a^2-4a+4)]/[(a-4)/(a^2-4)]*[(10+3a-a^2)/(2+a-a^2)]
[(3a-12)/(a^2-4a+4)]/[(a-4)/(a^2-4)]*[(10+3a-a^2)/(2+a-a^2)]
=[3(a-4)/(a-2)²]/[(a-4)/(a-2)(a+2)]*[(5-a)(2+a)/(2-a)(1+a)]
=[3(a+2)/(a-2)]*[(5-a)(2+a)/(2-a)(1+a)]
=3(a-5)(a+2)²/[(a+1)(a-2)²]

合并同类项：a-2a-3a+4a+5a-6a-7a+8a+9a-10a-11a+12a+……+2008a+2009a-2010a-2011a 计算;(a^3)^4+a^10×a^2-a×a^2-a*a^3*a^8 a-2a+3a-4a+5a-6a+...+99a-100a 化简; a-2a+3a-4a+5a-6a+``````-2006a+2007a. (a+3a+5a+...+2009a)-(2a+4a+6a+...+2008a)= (a+3a+5a+.+2009a)-(2a+4a+6a+.2008a) 计算（a+3a+5a+...+2009a)-(2a+4a+6a+...+2010a) (a+3a+5a+...+2013a)-(2a+4a+6a+...+2012a)= 化简：a-2a+3a-4a+5a-6a+.+2010a+2011a. 计算(a+3a+5a+.+2003a)-(2a+4a+6a+...+2004a) (a+3a+5a+.+2003a)-(2a+4a+6a+.+2004a) （a+3a+5a...+2009a)-(2a+4a+6a+...+2010a)=? 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=[ ] a+a+1+a+2+a+3+a+4+a+5+a+6+a+7.+a+2013+a+2014=? 幂的计算题1、a×a^2×a^3×a^4×a^52、a+2a+3a+4a+a×a^2×a^3×a^4 a-2a+3a-4a+5a-6a+7a-8a+9a-10a+11a.+99a-100a= 化简12a^4-3a[a^2-4a(a^3-2a^2+3a)]