化简：(a/a-1-2a-1/a-1)÷a-1/a+2

来源：学生作业帮助网编辑：作业帮时间：2024/05/08 20:01:32

(a/a-1-2a-1/a-1)÷a-1/a+2
=（a-2a+1）/(a-1)÷ （a-1）/(a+2)
=(1-a)/(a-1)÷ （a-1）/(a+2)
=(a+2)/(1-a)
在右上角点击【评价】,然后就可以选择【满意,问题已经完美解决】了.

原式=[a-(2a-1)]/(a-1)×(a+2)/(a-1)
=-(a-1)/(a-1)×(a+2)/(a-1)
=-(a+2)/(a-1)

[a/(a-1)-(2a-1)/(a-1)]÷(a-1)/(a+2)
=[a-(2a-1)]/(a-1)×(a+2)/(a-1)
=[-(a-1)]/(a-1)×(a+2)/(a-1)
=-(a+2)/(a-1)
=(a+2)/(1-a)

【1】a+a=a×a a= [ ]【2】a×a=a÷a a=[ ]【3】a×a=a－a a=[ ] [4]a－a=a＋a a=[ ] 化简：[(a-2)/(a²+2a)-(a-1)/(a²+4a+4)]÷(a-4)/(a+2) 化简:｛(a+2/a²-2a)-(a-1/a²-4a+4)｝÷(a-4/a) 化简：(a/a-1-2a-1/a-1)÷a-1/a+2 化简a-1/a²+4a+4÷1-a/a²+2a 化简(a-5)(a+1)/a^2-5a÷(a^2+a) 化简:-a+a/a+1 a*a*a*a+a*a+1/a*a+a+1 化简 (1-16a×a×a×a)÷（4a×a+1)÷(2a+1)² (1-16a×a×a×a)÷(4a×a+1)÷(2a+1) (a 1)(a 2)(a 3)(a (a+2)(a+1)-a(a-3) [a/(a-1)+a/(a+2)](a+2)/(2a平方+3a+1)化简 [(a/a-2)-(a/a+2)]÷4a/2-a,其中a=-1/2 [a-a/(a+1)]÷(a²-2a)/(a²-4)×(a+1)/(a²+4a+4) 化简：(1-a)^2/a-1 (a 化简2a(a-1/2)+a 化简 a/a-1 - a-1/a+2÷a²-1/ a²+4a+4