Предмет: Алгебра, автор: Аноним

решите:
а) (5х+4у) в квадрате
б) ( 8а-5в) в квадрате

Ответы

Автор ответа: natalyvd

1

Ответ:

Объяснение:

на фото

Приложения:

Автор ответа: volovykdasha1

1

(5x+4y) ²=(5x)² + 2•5x•4y+(4y)²=25x² + 40xy +16у²

(8a-5в)²=(8a)²-2•8a•5B + (5B)²=64a²-80Ba + 25B²

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: shon31

ПЕРЕВОД ПОЖАЛУЙСТА!!!!!!!!!!!!!!!!!!!СРОЧНО
The usual meals in Britain are breakfast,lunch,tea and dinner or,in simpler houses,breakfast,dinner,tea and supper.
An evereday breakfast in Britain consists perhaps of cereal and always of toasts,usually eaten with marmelade or jam.Marmelade is made of oranges or lemons or grapefruit,and all other types of marmelade are called jam.With the toast people drink tea or instant coffee.A traditional British breakfast on the other hand has many things which are fried,for example scrambled eggs,sausages,bacon,tomatoes and sometimes beans.In addition people eat toasts with butter ( usually salted in Britain) or marmelade or jam and drink orange juice and tea.For a change they can have a boiled egg, cold ham or fish.
At one o'clock comes a meal which is dinner to some people,lunch for others.More than half the population has a hot dinner ( or lunch) in the middle of the day and a cool meal in the evening.Others have a light lunch at one, and a hot dinner in the evening.
English people generally have lunch at about one o'clock.At lunch time in a London restaurant or cafe one usually finds a mutton chop,or steak and chips, or cold meat or fish with potatoes and salad,then a pudding or fruit to follow.Afternoon tea as a meal you take sometime around five o'clock.You can have it not only in restaurents, hotels or at home but also in tea-shops,which specialize in this meal they call High Tea.

As it was said above,in the evening some people have a cool meal,which they usually call supper.In other houses dinner is the biggest meal of the day.Dinner throughout England is about 7 o'clock in the evening.

1 год назад

Предмет: Русский язык, автор: Ника632793

Помогите пожалуйста!!
Опишите любую знаменитую скульптуры 3-4 предложения с ДЕЕПРИЧАСТИЯМИ

1 год назад

Предмет: Русский язык, автор: дина312

помогите пожалуйста срочно надо

1 год назад

Предмет: Химия, автор: sovushka395

Составьте уравнения реакций нейтрализации, в результате которых получаются соли : K2SO4, Mg(NO3)2, ZnSO4, CaCl2, Al(NO3)3

7 лет назад

Предмет: Математика, автор: dinasultandd

Вспомни,чему равно значение квадратов однозначных чисел.Вычисли

7 лет назад