>
数学
>
{5-7x=>2x-4 {1-3/4(x-1)
人气:113 ℃ 时间:2020-05-23 12:22:50
解答
5-7x≥2x-4
-7x-2x≥-4-5
-9x≥-9
x≤1
1-3/4(x-1)
推荐
如果x^2-2x-1=0,求x^4+x^3-5x^2-7x+5的值.
已知x^3+3x-2=0,则2x^5+x^4+7x^3-x^2+x+1
解方程:5-2x/3-6-7x/4=x+x+2/4+2x-5/6
(1)X平方-2X+5=0 (2)X平方-2根号7X+7=0 (3)2X平方-X-6=0 (4)X平方-7X+2=0
已知4X^2-2X-1=0,求(12X^5-6X^4-7X^3+2X^2+1)/(2X^3-X+1)的值
这封英语信怎么写?
是判断题
X^2-2XY+2y^2=2,求证X+Y的绝对值≤10
猜你喜欢
yesterday he walked to home改错
描写桃花的片段
一件衣服打了八折后比原价便宜了24元,原价多少?
Brican told you that there wasn't angone in the room at that time ,wasn't there?那里错了
英语-1和-2/3怎么说呀
( )欲取蝉,而( )不知黄雀在其旁 ()欲啄螳螂,而()不知弹丸在其下也
某种商品按原定价出售,每件的利润为成本的25%,后来按原定价的90%出售,获得的总利润比原来增加了25%,那么降低后的销售量是原销售量的( )倍. A.3 B.2.5 C.2 D.1.5
My name is David.This is my room.You can see tow red sofas in it.A tabie is in fron of them.Look!
© 2024 79432.Com All Rights Reserved.
电脑版
|
手机版