通分：(1)x/x^2+2x+1,(2)x-1/x^2+x,(3)1/x^2-1

来源：学生作业帮助网 编辑：作业帮 时间：2024/11/28 22:15:00
通分：(1)x/x^2+2x+1,(2)x-1/x^2+x,(3)1/x^2-1
xQK %HS=!+z•Wӈ&yo桽}LrtSɞ)BR=8]#*o_>,8&"pj-bAarZA<@i! Oꭩ¢0@GE#Fԏ,qȷ&`|5pK\%)NIoʐNL^nJ/R@

通分：(1)x/x^2+2x+1,(2)x-1/x^2+x,(3)1/x^2-1
通分：(1)x/x^2+2x+1,(2)x-1/x^2+x,(3)1/x^2-1

通分：(1)x/x^2+2x+1,(2)x-1/x^2+x,(3)1/x^2-1
x/(x^2+2x+1)
=x/(x+1)^2
=x^2(x-1)/[x(x+1)^2(x-1)]
=(x^3-x^2)/[x(x+1)^2(x-1)]
(x-1)/(x^2+x)
=(x-1)/[x(x+1)]
=(x-1)^2(x+1)//[x(x+1)^2(x-1)]
=(x^3-x^2-x+1)/[x(x+1)^2(x-1)]
1/(x^2-1)
=1/[(x+1)(x-1)]
=x(x+1)/[x(x+1)^2(x-1)]
=(x^2+x)/[x(x+1)^2(x-1)]

(1)x/x^2+2x+1=x/(x+1)^2=x^2(x-1)/x(x-1)(x+1)^2
(2)x-1/x^2+x=(x-1)/x(x+1)=(x+1)(x-1)^2/x(x-1)(x+1)^2
(3)1/x^2-1=1/(x^2-1)=1/(x-1)(x+1)=x(x+1)/x(x-1)(x+1)^2

通分x/(2+2x)与1/(x^2-x) 通分：x+1/x-2; x-2/x+1 x/2(x+1),1/x^2-x通分 x/2(x+1)和1、x^2-x通分 通分 x/2(x+1),1/x²-x 通分：x/1,x/x+1,2/3x 通分:x^3/x-1-x^2-x x/x^2-4,x-1/(x+2)^2 通分x/x^2-4,x-1/(x+2)^2通分 x/(x-1)^2,2/1-x^3 分式通分 通分1/x^2-4与x/4-2x 请进 通分1/x ,2x/x^2-4 分式通分 9/x-3,1/x^2-3x 通分x+1/x(x-1),x/x^2-1,2/x^2-2x+1 通分x+1/x(x-1),x/x^2-1,2/x^2-2x+1 通分：1/x²-x,x/1-2x+x²,2/x²-x-2 2/x-1,1-3x/2-2x 通分,2/x-1,1-3x/2-2x 通分, 通分：1/x+1 1/x+2x+1 1/x+3x+2通分：1/x+1 1/x+2x+1 1/x+3x+2 数学分式通分1/ac;1/2b[通分]1/x-1;4/x^2-1[通分]3/x-2;2/6-3x[通分]1/(x+1)(x-4);2/(x-4)^2[通分]