Home
О нас
Products
Services
Регистрация
Войти
Поиск
Victoria98sv
@Victoria98sv
August 2022
1
9
Report
решить систему уравнений
x^2-xy-y^2=7
x^3+y^3=35
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
ТатМих
Verified answer
X³+y³=35
x³+y³=(x+y)(x²-xy+y²)=35
(x+y)*7=35
x+y=5
y=5-x
x²-x(5-x)+(5-x)²=7
x²
-5x+
x
²+25-10x+
x²
-7=0
3x²-15x+18=0
x²-5x+6=0
корни находим по теореме Виетта
x1=2 y1=5-x=3
x2=3 y2=2
Ответ:(2;3) или (3;2)
4 votes
Thanks 3
×
Report "решить систему уравнений x^2-xy-y^2=7 x^3+y^3=35..."
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 © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
X³+y³=35x³+y³=(x+y)(x²-xy+y²)=35
(x+y)*7=35
x+y=5
y=5-x
x²-x(5-x)+(5-x)²=7
x²-5x+x²+25-10x+x²-7=0
3x²-15x+18=0
x²-5x+6=0
корни находим по теореме Виетта
x1=2 y1=5-x=3
x2=3 y2=2
Ответ:(2;3) или (3;2)