>
数学
>
26/x-26/x+2=2
这道分式方程怎么算?
人气:273 ℃ 时间:2020-05-14 06:03:29
解答
答:
26/x-26/(x+2)=2
13/x-13/(x+2)=1
两边同乘以x(x+2)得:13(x+2)-13x=x(x+2)
13x+26-13x=x^2+2x
x^2+2x+1=27
(x+1)^2=27
x=-1±3√3
推荐
-2√x=-26
X+X+2+X+4-(X+4)=26
(x^2+x)^2-26(x^2+x)+120
x/(26+2)=x/(26-2)-3
x/2+x/3+x/4=26
有40克食盐溶液,若加入200克水,它的浓度就减少10%.这种溶液原来有多少克水?原来浓度是多少?
请问BEC高级的各题的分数比例是多少?每一部分各占多少分
古诗词中描写鱼的诗句,
猜你喜欢
There was a big river and tow hills in my hometown ten years ago.
诗经采薇表达了什么的思想感情
clothing made of the man-made fiber has certain advantages over() made of natural fiber like cotton
连续的两句含有"杜鹃"的古诗句.
若等差数列{an}的公差d≠0,且a1,a3,a7成等比数列,则a1a4=( ) A.12 B.25 C.2 D.52
一元二次方程-已知关于x的方程x^2+px+q=0的两个根式-1和-3,求p和q的值
About twice a week my driver collects me from school.l go and have lunch with a client
十年树木百年树人的意思
© 2026 79432.Com All Rights Reserved.
电脑版
|
手机版