>
数学
>
16x²-49=0,求X
人气:182 ℃ 时间:2020-06-13 14:51:04
解答
16x²-49=0
(4x+7)(4x-7)=0
x1=-7/4,x2=7/4
推荐
16x²-49=0,x的值是多少?
x²+16x+63=0
已知16x²-49=0,是x
X²-16X-161=0怎么解?
16x²=(x-2)²
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