Предмет: Алгебра, автор: rt5ttrt

упростите выражение (y+7)2-(y+7)(7-y)

Ответы

Автор ответа: annafox444

0

Ответ:

(7y - 4)(2y +3) -13y = + 21y - 8y - 12 - 13y = + 21y - 21y -12 = -12

Автор ответа: anasteysha46

1

Объяснение:

приложение : photomath

Приложения:

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Английский язык, автор: ole4kanikitina

Помогите пожалуйста с английским :сMr. Petrov, a Russian businessman, (to call) at the British pavilion at the inernational exhibition which (to hold) in London last month. He (to get) interested in the Model K2 machine-tool. After he (to see) the machine in operation he (to get) in touch with Mr. Black. Petrov: Good afternoon, Mr. Black. Here (to be) my card. Black: Good afternoon, Mr. Petrov. Glad to see you. Petrov: I (to come) to London on business and I (to be) happy to visit this exhibition. Black: I (to hope) you (to find) it interesting. Petrov: It (to be) wonderful. I (to impress) by the size and scope of the exhibition. It (to be) one of the largest exhibitions I ever (to visit). Black: Yes, over 500 companies (to take) part in it. Petrov: Mr Black, I just (to see) your pavilion. The Model K2machine-tool (to attract) my attention. I must say your country (to make) much progress in the field of machine-tool industry. Black: It (to be) a pleasure to hear that. It (to be) an up-to-date model. It (to introduce) into the market at the beginning of the year and since then it (to be) a great success. A lot of companies (to show) much interest in the model. Petrov: You see, Mr Black, we'd like to place an order with your company for this model and we'd like to negotiate the price for the machines. Back: Yes, of course. We (to be) glad to establish business relations with your company. Petrov: When we (can, to meet) to discuss the matter in detail? Black: What about Tuesday at 10 in the morning? Petrov: All right. I (to be glad) to meet you on Tuesday. Good-bye!

2 года назад

Предмет: Другие предметы, автор: VuKyLя

названия сказок которые можно поместить в бытовые

2 года назад

Предмет: Русский язык, автор: nikitaradionov

предложения из басен крылова с однородными членами

2 года назад

Предмет: Математика, автор: veselovfm

поставь знаки действий и, если надо, скобки так, чтобы получились верные равенства.
4 8 9=41 23 3 2=18
7 5 25=60 66 36 5=6
63 7 3=3 56 7 4=32

8 лет назад

Предмет: Математика, автор: хххх28

В 4 одинаковых по массе пакетах 28 кг вишни .Сколь ко килограммов вишни в з таких пакетах

8 лет назад