a+2/5a+5-a+3/5a+10怎么写
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a+2/5a+5-a+3/5a+10怎么写a+2/5a+5-a+3/5a+10怎么写a+2/5a+5-a+3/5a+10怎么写原式=[(a+2)²-(a+1)(a+3)]/5(a+1)(a+
a+2/5a+5-a+3/5a+10怎么写
a+2/5a+5-a+3/5a+10怎么写
a+2/5a+5-a+3/5a+10怎么写
原式=[(a+2)²-(a+1)(a+3)]/5(a+1)(a+2)
=(a²+2a+4-a²-4a-3)/(5a²+15a+10)
=1/(5a²+15a+10)
(a+3)(a-3)+(a-5)(a+7)-2a(a-1)怎么做?
a-2a+3a-4a+5a-6a+7a-8a+9a-10a+11a.+99a-100a=
a+2/5a+5-a+3/5a+10怎么写
-a+2(a-1)-(3a+5)怎么做
玩悠悠球时,1A,2A,3A,4A,5A怎么玩.
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)=?
5a^-〔a^-2a-2(a^-3a)]
合并同类项:a-2a-3a+4a+5a-6a-7a+8a+9a-10a-11a+12a+……+2008a+2009a-2010a-2011a
a+a+1+a+2+a+3+a+4+a+5+a+6+a+7.+a+2013+a+2014=?