Предмет: Алгебра, автор: a1861046

Преобразуйте в многочлен
(b+4)*b-(b+2)²

Ответы

Автор ответа: anna310108sh

1

Ответ:

b в квадрате - b в квадрате +4b+4

Надеюсь, что правильно

anna310108sh: ооой, я не правильно решила. сейчас всё объясню

a1861046: Бывает)

a1861046: Надеюсь вы меня не кинули?

anna310108sh: нам нужно раскрыть скобки. (b+4)*4=(b*4) +4*4. получается:4b +16.раскрываем 2-ую скобку по формуле: (b+2)в квадрате=bв квадрате +4b+4. получается многочлен:bв квадрате+4b-bв квадрате +4b+4. сокращает и решаем. получается:8b+4

anna310108sh: Как-то так

anna310108sh: блин

anna310108sh: нет

anna310108sh: окончательный ответ:8b+20

anna310108sh: крч, я не умею объяснятьПростите меня

a1861046: Спасибо большое!!!

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