Home
О нас
Products
Services
Регистрация
Войти
Поиск
Bandeano
@Bandeano
July 2022
1
11
Report
Log2(2x-1)-2=log2(x+2)-log2(x+1) Решите уравнение
Please enter comments
Please enter your name.
Please enter the correct email address.
Agree to
terms of service
You must agree before submitting.
Send
Answers & Comments
erzhan9210
Verified answer
Одз 2х-1≥0
2х≥1
х≥1/2
х+2≥0
х≥-2
х+1≥0
х≥-1
log2(2x-1)-log2(4)=log2(x+2)-log2(x+1)
(2x-1)/4=(x+2)/(x+1)
(2x-1)(x+1)=4*(x+2)
2x²+2x-x-1=4x+8
2x²+x-1-4x-8=0
2x²-3x-9=0
D=9+4*2*9=9+72=81
x=(3±9)/4
x=12/4=3
x=-6/4=-1,5 не подходит одз
ответ х=3
4 votes
Thanks 4
More Questions From This User
See All
Bandeano
July 2022 | 0 Ответы
12 eto reshit neravenstvaa trete eto reshite graficheski neravenstvo
Answer
Bandeano
July 2022 | 0 Ответы
log032x2 9x42log03x2
Answer
Bandeano
July 2022 | 0 Ответы
budte dobrypomogite pozhalujsta
Answer
Bandeano
July 2022 | 0 Ответы
reshite sistemupomogite bestolochu pzh
Answer
Bandeano
July 2022 | 0 Ответы
log2 5xlog5x 20 reshite uravnenie
Answer
Bandeano
July 2022 | 0 Ответы
vychislite 111111111111
Answer
Bandeano
July 2022 | 0 Ответы
pomgite pzhs pomoshyu logarifmicheskih tozhdestv uprostite vyrazhenie rebyat pomogit
Answer
Bandeano
July 2022 | 0 Ответы
2 x5 najti oblast opredeleniya funkciiad70a763520e75cd976073f3b8e59166 80468
Answer
Bandeano
July 2022 | 0 Ответы
log22x 1 2log2x2 log2x1 reshite uravneniee0f07bdaf446187e3572755af43405f5 8995
Answer
Bandeano
July 2022 | 0 Ответы
2 x5 najti oblast opredeleniya funkcii
Answer
рекомендуемые вопросы
rarrrrrrrr
August 2022 | 0 Ответы
o chem dolzhny pozabotitsya v pervuyu ochered vzroslye pri organizacionnom vyvoze n
danilarsentev
August 2022 | 0 Ответы
est dva stanka na kotoryh vypuskayut odinakovye zapchasti odin proizvodit a zapcha
myachina8
August 2022 | 0 Ответы
najti po grafiku otnoshenie v3v1 v otvetah napisano 9 no nuzhno reshenie
ydpmn7cn6w
August 2022 | 0 Ответы
Choose the correct preposition: 1.I am fond (out,of,from) literature. 2.where ar...
millermilena658
August 2022 | 0 Ответы
opredelite kak sozdavalas i kto sozdaval arabskoe gosudarstvo v kracii
MrZooM222
August 2022 | 0 Ответы
ch ajtmanov v rasskaze krasnoe yabloko ispolzuet metod rasskaz v rasskaze opi
timobila47
August 2022 | 0 Ответы
kakovo bylo naznachenie kazhdoj iz chastej vizantijskogo hrama pomogite pozhalujsta
ivanyyaremkiv
August 2022 | 0 Ответы
moment. 6....
pozhalujsta8b98a56c0152a07b8f4cbcd89aa2f01e 97513
sarvinozwakirjanova
August 2022 | 0 Ответы
pomogite pozhalusto pzha519d7eb8246a08ab0df06cc59e9dedb 6631
×
Report "Log2(2x-1)-2=log2(x+2)-log2(x+1) Решите уравнение..."
Your name
Email
Reason
-Select Reason-
Pornographic
Defamatory
Illegal/Unlawful
Spam
Other Terms Of Service Violation
File a copyright complaint
Description
Helpful Links
О нас
Политика конфиденциальности
Правила и условия
Copyright
Контакты
Helpful Social
Get monthly updates
Submit
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
Одз 2х-1≥02х≥1
х≥1/2
х+2≥0
х≥-2
х+1≥0
х≥-1
log2(2x-1)-log2(4)=log2(x+2)-log2(x+1)
(2x-1)/4=(x+2)/(x+1)
(2x-1)(x+1)=4*(x+2)
2x²+2x-x-1=4x+8
2x²+x-1-4x-8=0
2x²-3x-9=0
D=9+4*2*9=9+72=81
x=(3±9)/4
x=12/4=3
x=-6/4=-1,5 не подходит одз
ответ х=3