Предмет: Алгебра, автор: zakirovruslan2101

1. Преобразуйте уравнение (х + 2)2 + 2x = 5x(x - 2) к виду ах² + укажите старший коэффициент, второй коэффициент и свободный член​

Приложения:

Ответы

Автор ответа: DefinitelynotN
0

Ответ:

x^2-4x-1=0

Старший коэффициент(a)=1

Второй коэффициент(b)=-4

Свободный член(c)=-1

Объяснение:

(x+2)^2+2x=5x(x-2)

x^2+6x+4=5x^2-10x

x^2+6x+4-5x^2+10x=0

-4x^2+16x+4=0|:(-4)

x^2-4x-1=0

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Математика, автор: bratotkat
нужно сделать тест по алгебре це початковий рівень
1 год назад
Предмет: Алгебра, автор: fesenkoartyr9
1263. Подайте у вигляді степеня вираз: 1) (а⁸)⁴ 2) а⁸а⁴ 3) а⁵а⁵ 4) (а⁵)⁵ 5) а²а³а⁴ 6) (а²)³а⁴ 7) а⁶а⁶а⁶ 8) (а⁶а⁶)а⁶ 9) (а⁶)⁶а⁶ 10) (а⁴)⁵: а⁷ 11) (а²)⁹ :(а⁶)³ 12) (а⁸а⁷) : а¹⁴​
1 год назад
Предмет: Английский язык, автор: sulgaveronika255
ПОМОГИТЕ!!!! прошу A Sad Story Three American students came for their holidays to New York. They stayed at a hotel, in a room on the 54-th floor. They spent the whole day in the city, they visited some museums, saw some films in the cinema in Broadway. Late at night they came back to the hotel. The clerk in the hall said to them: "Dear boys, I'm sorry but the lifts don't work now. Will you wait till the lifts begin to work or will you go on foot upstairs?" "That's all right," said one of them, "we'll go on foot. It will take us much time but we'll have a short rest, one of us will sing a song when we come to the 15th floor. As soon as we come to the 30th floor one of us will tell a funny story. As soon as we come to the 45th floor we'll take a long rest and one of us will tell a long sad story." So they started. On the 15th floor John sang a funny song and the young men gaily continued their way. On the 30th floor Tom told his friends a funny story, they laughed and continued their way. On the 45th floor the young men were tired, they wanted to take a long rest. All of them looked at Jack, it was his turn to tell his long sad story. "Well, boys," said he, "my story won't be long, but it will be really sad. The key to our room is downstairs in the hall. When we came to the hotel we forgot to take it."

1. Late at night students returned to …
b) Broadway
a) the room
c) the hotel

2. The clerk in the hall …
c) went upstairs with students
b) was happy to see students
a) apologized

3. The students decided to go upstairs …
c) on foot
a) with the clerk
b) by the lift

4. John sang a funny song and the young men … continued their way.
a) unhappily
c) joyfully
b) sadly

5. Tom told his friends a(n) … story, they laughed and continued their way.
c) interesting
a) amusing
b) sad

6. On the 45th floor students decided …
c) to sing a funny song
b) to relax
a) to tell a funny story

7. Jack said, “My story will be …”
a) sad
b) long
c) funny

8. Jack said, “The key to our room is…”.
a) on the ground floor
b) in the cinema
c) in the room​
1 год назад
Предмет: Математика, автор: Zzzzarina
длина прямоугольника 5 см, а ширина прямоугольника b cм, площадь S см квадрат. Какова формула для зависимости площади S от b ? ​
7 лет назад
Предмет: Геометрия, автор: Аноним
А(-1 ; 1) , B(1 ; 5) , C(3 ; 1) нүктелері берілген АВС үшбұрышы теңбүйірлі екенін дәлелдеу керек
7 лет назад