Решите уравнение :1) х^5-х^4-х+1=0 2)х(х+2)-(х+3)(х-3)=133) 4х(х-1)-(2х+5)(2х-5)=1 - №27541098

Решите уравнение :
1) х^5-х^4-х+1=0

2)х(х+2)-(х+3)(х-3)=13

3) 4х(х-1)-(2х+5)(2х-5)=1

Даю 20 баллов! Пожалуйста!!!
- Предмет:
  Алгебра
- Автор:
  giovannikegd
- 5 лет назад

Ответы 1

1) не понимаю 2)х^2+2х-х^2 +9=13х^2-х=4х (х-1)=4х=4 или х-1=4 х=53)4х^2-4х-4х^2+25=1-4х=-24 х=6
- Автор:
  oneal
- 5 лет назад
- 0
Добавить свой ответ

Еще вопросы

выпеши все делители числа 250
- Предмет:
  Математика
- Автор:
  alexiaxfzc
- 5 лет назад
- Ответов:
  
  1
- Смотреть
Исправить ошибку в предложениях. Отметьте три правильных предложения.
1 When I was just a little girl, I was asking my mother: ‘What will I be?’ asked
2 Bach’s music become more popular after his death. ________
3 After the Prince had heard of the deaths, he banished Romeo from Verona. ________
4 When I was waking up, it was still dark. ________
5 Last weekend I have gone shopping with my friends. ________
6 We don’t know what happened when they first met. ________
7 I used to visit my grandmother last week. ________
8 John and I used to be friends in school. We’re not so close these days. ________
9 The teacher gave us our homework but we weren’t paid attention. ________
10 The city looked horrible after the hurricane was destroying it. ________
11 When I had seen her on Tuesday, she was wearing a black dress. ________
- Предмет:
  Английский язык
- Автор:
  brutus23
- 5 лет назад
- Ответов:
  
  0
- Смотреть
Заполните текст правильной формой глагола.
F. Scott Fitzgerald was born in 1896 in St Paul, Minnesota, and, like his friend Ernest Hemingway, he (1 live) lived in Paris in the 1920s. Before Fitzgerald (2 move) ________ to Paris, he (3 be) ________ a student at Princeton University and a member of the US Army. It was while he (4 train) ________ with the army that he (5 meet) ________ and married Zelda Sayer.
During the 1920s, the Fitzgeralds’ home (6 become) ________ the centre for a lively group of writers and artists in Paris. Their lifestyle (7 involve) ________ lots of parties, so some people were surprised to find he had real talent. He (8 write) ________ many great novels, but perhaps his most famous book is The Great Gatsby which (9 publish) ________ in 1925. Zelda Fitzgerald (10 be) ________ also an author, and her autobiographical novel, Save Me the Waltz, (11 come) ________ out in the early 1930s.
- Предмет:
  Английский язык
- Автор:
  mcclain
- 5 лет назад
- Ответов:
  
  3
- Смотреть
В равнобедренном треугольнике один из углов равен 156°.Найдите угол при основании этого треугольника.Ответ дайте в градусах
- Предмет:
  Геометрия
- Автор:
  lexieyi5z
- 5 лет назад
- Ответов:
  
  1
- Смотреть

How much to ban the user?

1 hour 1 day 100 years