(1)化简:(2-a^-1+3/4)a^-1/a^-1
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 1)(a 2)(a 3)(a
(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
a+a^2+a^3+a^4+a^5+a^6...+a^n=a^n+1-a/a-1 (a-1)≠0
(2a^2+3a+2)/(a+1)-(a^2-a-5)/(a+2)-(3a^2-4a-5)/(a-2)+(2a^2-8a
求(2a平方+3a+2)/(a+1)-(a平方-4a-5)/(a+2)-(3a平方-4a-5)/(a-2)+(2a平方a