Предмет: Алгебра, автор: mashunyazajcev

(3а -2) ^2-( 3а +1)(а+5) упростите выражение

Ответы

Автор ответа: Natsumy
1

{9a}^{2} - 12a + 4 - ( {3a}^{2} + 15a + a + 5) \\ {9a}^{2} - 12a + 4 - ( {3a}^{2} + 16a + 5) \\ {9a}^{2} - 12a + 4 - {3a}^{2} - 16a - 5 \\ {6a}^{2} - 28a - 1
Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Английский язык, автор: ttimchuk26
THE AMAZING CAMEL

The camel is a fascinating animal which is (1) ________________ (perfect) suited for life in the hot desert. For centuries, it has helped human (2) ________________ (survive) there, too. Indeed, the only reason nomadic tribes were able to (3) _________________ (successful) cross the huge deserts of Arabia and (4) ______________ (north) Africa was because of this amazing animal. So what makes the camel so special? Well, for one thing, camels can last for weeks in (5) ________________ (boil) hot temperatures without food and water. When they do need water, they can drink (6) ________________ (salt) water that would be too dangerous for a human to drink. Also, they can eat virtually anything that grows in the desert.
Camels also have incredible (7) _______________ (strong). They can carry up to 450 kg on their backs! Furthermore, female camels produce (8) _______________ (nutrition) milk that humans can drink. This milk has often helped humans survive in the desert when water supplies have been (9) ______________ (sufficient).
For many years, it was (10) ________________ (mistaken) believed camels stored water in their hump. In fact, they store fat there. When food is scarce, camels live off this fat. However, when a camel’s hunger reaches the point of (11) ________________ (starve), its hump shrinks and can even slip off its back and hang down its side!
5 лет назад
Предмет: Математика, автор: dutkevicviktor0
Срочно треба фото розвязку на листку
5 лет назад
Предмет: Английский язык, автор: ttimchuk26
JELLYFISH
Jellyfish are beautiful and (1) _______________ (mystery) sea creatures, well-known for their (2) _____________ (poison) stings. They come in many different colours and patterns, and some jellyfish even glow in the dark! The smallest are just a few inches wide while the largest can grow to an incredible (3) ______________ (long) of 120 feet!
Jellyfish move through the water like an umbrella. They do this by opening their skin and letting water flow inside. Then they push all the water out. When this happens, the jellyfish (4) ______________ (sudden) shoot forward.
Every year, (5) _____________ (shock) stories are published in newspapers about people who have been stung by jellyfish. However, although it is true that some types of jellyfish can be (6) ______________ (extreme) dangerous, the majority are actually absolutely (7) ________________ (harm). They simply flat around peacefully in the ocean.
In (8) ________________ (real), jellyfish need to be more afraid of humans than we of them. Why? Because jellyfish is on the menu in several countries! The (9) ________________ (Japan), for instance, consider jellyfish a delicacy. In Japan you can even buy jellyfish sweets and jellyfish sushi! The locals enjoy its (10) ______________ (rubber) texture although foreigners usually say it tastes quite bland!
5 лет назад
Предмет: Математика, автор: edikkonukhov
20. Таймер в часах поставили так, что он подаёт один сигнал через каждые полчаса. В первый раз таймер просигналил в 11:00. Во сколько он просигналит в восьмой раз?
8 лет назад
Предмет: Математика, автор: павелпастухов
Как решить задачу: во время сушки яблоки теряют 84% своей массы. Сколько надо взять свежих яблок, чтобы получить 24 кг. Сушеных?
8 лет назад