Home
О нас
Products
Services
Регистрация
Войти
Поиск
QzOrG
@QzOrG
June 2022
1
1
Report
помогите решить систему уравнений :[tex] \left \{ {{(x+y+1)^{2}-4(x+y) =1} \atop { x^{2}-xy-4y^{2} =4}} \right. [/tex]
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
mathgenius
Замена: x+y=t
(t+1)²-4*t-1=0
t²-2*t=0
t₁=0 y=-x
t₂=2 y=2-x
1) x²+x²-4*x²=4
-2*x²=4 (Нет решений)
2) x²-x*(2-x)-4*(2-x)²=4
2*x²-2*x -4*(4-4*x+x²)=4
-2*x²+14*x-20=0
x²-7*x+10=0
По теореме Виета:
x₁=5 y₁=-3
x₂=2 y₂=0
Ответ: (5, -3) ; (2,0) .
2 votes
Thanks 1
More Questions From This User
See All
QzOrG
August 2022 | 0 Ответы
napishite uravneniya reakcij mezhdu veshestvami 1 kno3 gt 2 nh4cl gt 3 f
Answer
QzOrG
August 2022 | 0 Ответы
tex]-12=0...
Answer
QzOrG
August 2022 | 0 Ответы
texbf633d09039b86a2975c662da873bc05 3142
Answer
QzOrG
July 2022 | 0 Ответы
obraz lyubogo geroya iz revizor
Answer
QzOrG
November 2021 | 0 Ответы
pomogite reshit sistemu uravnenij6b94ef8a1a78223cf1228d74c15e9a2d 33735
Answer
QzOrG
October 2021 | 0 Ответы
ostryj ugol parallelogramma raven 30gradusov a vysoty provedyonnye iz vershiny t
Answer
QzOrG
September 2021 | 0 Ответы
najdite pervye chetyre chlena arifmeticheskoj progressii a a1021 a2041 b a
Answer
QzOrG
September 2021 | 0 Ответы
najdite summu beskonechnoj geometricheskoj progressii 6 15
Answer
QzOrG
August 2021 | 0 Ответы
pomogite 1s kakimi iz dannyh veshestv budet vzaimodejstvovat azotnaya kislota
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 "tex]..."
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
(t+1)²-4*t-1=0
t²-2*t=0
t₁=0 y=-x
t₂=2 y=2-x
1) x²+x²-4*x²=4
-2*x²=4 (Нет решений)
2) x²-x*(2-x)-4*(2-x)²=4
2*x²-2*x -4*(4-4*x+x²)=4
-2*x²+14*x-20=0
x²-7*x+10=0
По теореме Виета:
x₁=5 y₁=-3
x₂=2 y₂=0
Ответ: (5, -3) ; (2,0) .