2(a-4)(a+3)-(2a-1)(a-1)
来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/17 08:25:25
2(a-4)(a+3)-(2a-1)(a-1)2(a-4)(a+3)-(2a-1)(a-1)2(a-4)(a+3)-(2a-1)(a-1)原式=2*(a^2-a-12)-(2a^2-3a+1)=2a^
2(a-4)(a+3)-(2a-1)(a-1)
2(a-4)(a+3)-(2a-1)(a-1)
2(a-4)(a+3)-(2a-1)(a-1)
原式=2*(a^2-a-12)-(2a^2-3a+1)
=2a^2-2a-24-2a^2+3a-1
=(2-2)a^2+(3-2)a-24-1
=a-25
2(a-4)(a+3)-(2a-1)(a-1)
=2(a²-a-12)-(2a²-3a+1)
=a-25
(通分) a/a^a^a+3a+2 ,a/a^a+2a+1 ,-1/3a+6
5a-【a+(5a-2a)-2(a-3a)-4a】
求和:1,a+a^2,a^3+a^4+a^5,a^6+a^7+a^8+a^9,···(a不等于0)
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^2+2a分之a-2)-(a^2+4a+4分之a-1)]除以a+2分之a-4,其中a=-3
a+a+1+a+2+a+3+a+4+a+5+a+6+a+7.+a+2013+a+2014=?
[(4a²-4a)/(a²2a+1)]÷[a+1/(a-1)-(a-1)/(a+1)]×[1/(3a+3)]
已知a=-3/4,求(a+1)(a+3)(2a-a²)/(a³+a²)(a-2)(a+3)的值
计算:(a+3a+5a+...+2013a)-(2a+4a+6a+...+2012a)=?
计算(a+3a+5a+.+2003a)-(2a+4a+6a+.+2004a)
1.3a(2a的平方-9a+3)-4a(2a-1)
计算(a^2+a+1)/(a+1)-(a^2-3a+1)/(a-3)
a-2a+3a-4a+.+99a-100a的值为( )
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 1)(a 2)(a 3)(a
(a+2)(a+1)-a(a-3)
求行列式的值 题一:4,-1,2 3,0,8 -4,1,-2 题2:D=(x,a,a,a a,x,a,a a,a,x,a a,a,a,x)