1.化简4√1-a^2 ̄+√a^2-1 ̄+3a/1-a
1.化简4√1-a^2 ̄+√a^2-1 ̄+3a/1-a
a(a-1)(a-2)(a-3)(a-4)因式分解
(a 1)(a 2)(a 3)(a
【1】a+a=a×a a= [ ]【2】a×a=a÷a a=[ ]【3】a×a=a-a a=[ ] [4]a-a=a+a
已知a²+2a-√3=0,求代数式[(a-2)/(a²+2a)-(a-1)/(a²+4a+
(a-1)(a-2)(a-3)(a-4)-3因式分解,
(a+1)(a+2)(a+3)(a+4)的答案
因式分解 (a+1)(a+2)(a+3)(a+4)+24
因式分解:(a+1)(a+2)(a+3)(a+4)-120
因式分解:(1) a*4-a*3+a*2-a
(高一集合)已知A={2,4,a*a*a-2a*a-a+7},B={1,a+3,a*a-2a+2,a*a*a+a*a+3
(2a^2+3a+2)/(a+1)-(a^2-a-5)/(a+2)-(3a^2-4a-5)/(a-2)+(2a^2-8a