3a^3+2a-0.75a^3+0.5a-0.6a^3-1/3a a=12急
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3a^3+2a-0.75a^3+0.5a-0.6a^3-1/3aa=12急3a^3+2a-0.75a^3+0.5a-0.6a^3-1/3aa=12急3a^3+2a-0.75a^3+0.5a-0.6a^
3a^3+2a-0.75a^3+0.5a-0.6a^3-1/3a a=12急
3a^3+2a-0.75a^3+0.5a-0.6a^3-1/3a a=12
急
3a^3+2a-0.75a^3+0.5a-0.6a^3-1/3a a=12急
解
3a³+2a-0.75a³+0.5a-0.6a³-1/3a
=(3a³-0.75a³-0.6a³)+(2a+0.5a-1/3a)
=1.65a³+(2.5a-1/3a)
=1.65a³+(5/2a-1/3a)
=1.65×12³+13/6a
=2851.2+26
2877.2
计算(3a×a)+(2a×3a)+(3a×a)+[a×(a+2a+2a+2a+a)]
(a 1)(a 2)(a 3)(a
(a+2)(a+1)-a(a-3)
3a^3+2a-0.75a^3+0.5a-0.6a^3-1/3a a=12急
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)=?
5a^-〔a^-2a-2(a^-3a)]
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=[ ]