(a-2)(a2+2a+4)-【3a(a+1)2-2a(a-1)2-(3a+1)(3a-1)】+a(1+a)化简(要求有
(a2-a)a2-2a-3÷a(a-3)=a(a-1)(a+1)(a
(a 1)(a 2)(a 3)(a
a(a-1)(a-2)(a-3)(a-4)因式分解
(a-1)-(3a2-2a+1)
[1-(6+3a)/(a2+4a+4)]÷[(4a-4)/(a2+2a)]
【1】a+a=a×a a= [ ]【2】a×a=a÷a a=[ ]【3】a×a=a-a a=[ ] [4]a-a=a+a
(a2-1)/(a2+2a+1)除以(a2-a)/(a+1) (a-2/(a+3)除以(a2-4)/(a2+6a+9)
已知实数a满足a2+2a-1=0求(1 /a+1)-(a+3/a2-1)*(a2-2a+1/a2+4a+3)的值
先化简,再求值(3a/a-1 -a/a+1)(a2-1/a),其中a=根号2-2
(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