紧急!1.(a^2+3)(a-2)-a(a^2-2a-2)=?2.(3/5a^5b^3+9/5a^7b^4-9/2a^5
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/10/06 13:23:26
紧急!1.(a^2+3)(a-2)-a(a^2-2a-2)=?2.(3/5a^5b^3+9/5a^7b^4-9/2a^5b^5)除以3/4a^5b^3)=?
1.(a^2+3)(a-2)-a(a^2-2a-2)=?
2.(3/5a^5b^3+9/5a^7b^4-9/2a^5b^5)除以3/4a^5b^3)=?
1.(a^2+3)(a-2)-a(a^2-2a-2)=?
2.(3/5a^5b^3+9/5a^7b^4-9/2a^5b^5)除以3/4a^5b^3)=?
(a^2+3)(a-2)-a(a^2-2a-2)
=a^3-2a^2+3a-2-a^2+2a^2+2a
=5a-2
(3/5a^5b^3+9/5a^7b^4-9/2a^5b^5)除以3/4a^5b^3)
=4/5+12/5a^2b-6b^2
=a^3-2a^2+3a-2-a^2+2a^2+2a
=5a-2
(3/5a^5b^3+9/5a^7b^4-9/2a^5b^5)除以3/4a^5b^3)
=4/5+12/5a^2b-6b^2
对任意自然数a、b,规定a*b=2×a+b.若有:a*2a*3a*4a*5a*6a*7a*8a*9a=2026,则a的值
5(a+b)-3(a-b)=2 2(a+b)+5(a-b)=7
化简2a-[3a-5a-(2a-7b)]等于( ).A、-7a+10b B、5a+4b C、-a-4b D、9a-10b
5a-{-3b+[6c-2a-(a-c)]}-[9a-(7b+c)]
分解因式(a+1)(a+3)(a+5)(a+7)+15(2a+b)(4a^2-2ab+b^2)-b(2a-b)^2a^3
(2a+b)(2a-b)-3a(4a-3b)+(4a-b)(2a-b) a=5分之3,b=3分之2
比较A=a^6+a^4+a^2+1与B=a^5+a^3+a的大小
[(a+2b)(a-2b)-(2a-b)²+(3a-b)(3a-5b)]÷2a
(a+3a+5a+...+2009a)-(2a+4a+6a+...+2008a)=
(a+3a+ 5a+```+2007a)-(2a+4a+6a+```+2008a)=?
(a+3a+5a+...+2013a)-(2a+4a+6a+...+2012a)=
3a^2-5a(3b-a)+2a(-4a-5/2b),其中a=1/5,