Home
О нас
Products
Services
Регистрация
Войти
Поиск
КПДшник
@КПДшник
August 2021
1
5
Report
Помогите решить пожалуйста!
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
afonckinanatali
1) 7x
^2 - 28 = 0
7x
^2 = 28 |7
x
^2 = +-корень из4
x1 = 2
x2 = -2
2) x
^2 - 13x + 22 = 0
Находим дискриминант:
D = b
^2 - 4ac
D = 13
^2 - 4*22 = 169 - 88 = 81
По т.о.т. Виетта:
x1+x2 = -b
x1x2 = c
x1+x2 = 13 | x1 = 11
x1x2 = 22 | x2 = 2
x1 = 11, x2 = 2.
0 votes
Thanks 0
КПДшник
Спасибо большое. Очень помогли!
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 "Помогите решить пожалуйста!..."
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
7x^2 = 28 |7
x^2 = +-корень из4
x1 = 2
x2 = -2
2) x^2 - 13x + 22 = 0
Находим дискриминант:
D = b^2 - 4ac
D = 13^2 - 4*22 = 169 - 88 = 81
По т.о.т. Виетта:
x1+x2 = -b
x1x2 = c
x1+x2 = 13 | x1 = 11
x1x2 = 22 | x2 = 2
x1 = 11, x2 = 2.