作业帮(a^2-4/a^-4a+4-1/a-2)÷a+1/a+2
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/03 01:06:32
(a^2-4/a^-4a+4-1/a-2)÷a+1/a+2
(a^2-4/a^-4a+4-1/a-2)÷a+1/a+2
(a^2-4/a^-4a+4-1/a-2)÷a+1/a+2
[(a²-4)/(a²-4a+4)-1/(a-2)]÷(a+1)/(a+2)
=[(a+2)(a-2)/(a-2)²-1/(a-2)]×(a+2)/(a+1)
=[(a+2)/(a-2)-1/(a-2)]×(a+2)/(a+1)
=(a+2-1)/(a-2)×(a+2)/(a+1)
=(a+1)/(a-2)×(a+2)/(a+1)
=(a+2)/(a-2)
原式=[(a+2)(a-2)/(a-2)²-1/(a-2)]×(a+2)/(a+1)
=[(a+2)/(a-2)-1/(a-2)]×(a+2)/(a+1)
=(a+2-1)/(a-2)×(a+2)/(a+1)
=(a+1)/(a-2)×(a+2)/(a+1)
=(a+2)/(a-2)
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=[ ]
计算[(a-1)/a*a-4*a+4]-[(a+2)/(a*a-2*a*a)]-4/a
a+a+1+a+2+a+3+a+4+a+5+a+6+a+7.+a+2013+a+2014=?
化简（a/a-2-a/a+2)×4-a/a（a/a-2-a/a+2)×4-a/a
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/a^2-4 a-1/a-2 a+2/a^2-4a+4
[(a/a-2)-(a/a+2)]÷4a/2-a,其中a=-1/2
[a^2-4/(a-3)(a+2)+(a+2)/a-3]除以a+1/a-3
(1-16a×a×a×a)÷（4a×a+1)÷(2a+1)²
(1-16a×a×a×a)÷(4a×a+1)÷(2a+1)
(a+1/a方-a+4/1-a方)/a方+2a-3/a+3
[a-a/(a+1)]÷(a²-2a)/(a²-4)×(a+1)/(a²+4a+4)
a=-1 求a-2a+3a-4a+5a-6a+...+99a-100a
(a+4)(2a+1)(a-3)
a^2-4a
计算;(a^3)^4+a^10×a^2-a×a^2-a*a^3*a^8
a-2a+3a-4a+5a-6a+...+99a-100a