Предмет: Математика, автор: tmaslov256

Знайдіть чотири послідовних цілих числа, якщо добуток двох менших з них на 54 менший за добуток двох більших. Помогитееее. ​

Ответы

Автор ответа: Аноним
8

Ответ:

12,13,14,15

Пошаговое объяснение:

(x+2)*(x+3)-x*(x+1)=54

x²+3x+2x+6-x²-x=54

3x+2x-x=54-6

4x=48

x=48/4

x=12

проверка:

14*15-12*13=54


tmaslov256: помоги еще
tmaslov256: у меня еще там один вопрос
Похожие вопросы
Предмет: Английский язык, автор: Аноним
помогите пожалуста Man Girl 1 Girl Hello . Man Good afternoon , can I help you ? Yes , please . Have you got today's Girl Daily News ? Yes , of course . Here you are . Thanks . Man Would you like anything else ? Girl Yes . Have you got the magazine Popular Teens ? Man Hmm , there may be one on that shelf over there . Let me check
Man 2 Woman Man Woman Man Woman Man Good morning , how can I help you ? I'd like to go to San Juan in July . San Juan , Puerto Rico ? That's right . Are there any cheap flights ? Woman Umm , I'm afraid not . Tickets are around 1100 euros . But I might find some cheap tickets for June . June ? Oh , no . I want to go to a dance festival in July . I haven't got anything . sorry Thank you anyway .
3 Boy Woman Hello , could I ask you something ? Yes , of course . I left my card at home . Can I still borrow this book ? No , I'm afraid you can't Boy Woman Boy Woman Boy Woman Ask one of your friends to borrow it for you . That's a good idea . Thank you ! Boy Woman You're welcome . But I really need this book I can bring my card tomorrow . I'm sorry . You know , there is something you can do . What's that ?
B. Read again and write T for True or F for False . Dialogue 1 1. The girl wants to buy two newspapers . 2. The man is sure he's got Popular Teens . Dialogue 2 3. There are cheap flights to San Juan in July . 4. The man wants to go to Puerto Rico in July . Dialogue 3 5. The boy hasn't got his card with him . 6. The woman decides to give the boy the book anyway .​