Предмет: Алгебра, автор: olyaxwq

Замініть * одночленом так, щоб можна було розкласти за множники за формулою 64m² + * + 49b²​

Ответы

Автор ответа: PronichevaVictoria
2

Можно представить как квадрат суммы:

(8m+7b)^{2} =64m^{2} +2*8m*7b+49b^{2} =64m^{2} +112mb+49b^{2}


olyaxwq: спасибо
Автор ответа: Universalka
2

\displaystyle\bf\\64m^{2} +112mb+49b^{2} =(8m)^{2} +2\cdot 8m\cdot 7b+(7b)^{2} =\\\\=(8m+7b)^{2} =(8m+7b)\cdot(8m+7b)

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Предмет: Английский язык, автор: o2244845
пожалуста срочно Writing Form 7


Task 1 Fill in the appropriate modal verb: must/mustn’t/have to/has to/don’t have to
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1. Visitors to the zoo __________ feed the animals. It is not allowed.
2. You ________ drive so fast; we have a lot of time
3. You _________ to wear a tie if you want to go to that restaurant. It's one of their rules!
4. You __________ put salt in her food; the doctor said she can’t eat salt.

Task 2 Fill in too or enough ( тестова форма)

1) I don't like this coffee. It's not ______________ (sweet).
2) Nobody could move the piano. It was _______________ (heavy).
3) We couldn't climb over the wall. It was _______________(high).
4) I don't wear this jacket in winter. It isn't _______________ (warm).

Task 3 Underline the correct variant (тестова форма)

1) There's someone/anyone at the door.
2) Does anybody/anything remember him?
3) There's nowhere/nothing you can do.
4) I've seen you something/somewhere before.

Task 4 Fill in the blanks with "a few" or "a little" to complete the sentences ( тестова форма)

1) Susan needs ___ cucumbers for the salad.
2) There is only ___ water in that glass. I want some more.
3) There are ___ coloured pencils and a book on the table.
4) Mr.Sad is unhappy because he has got only ___ money.

Task 5 Write what you usually have for:

I usually have _________________________ for breakfast.
I usually have _________________________ for lunch.
I usually have _________________________ for dinner.
I usually have _________________________ for supper.