Предмет: Алгебра, автор: kornienko131103

(x + 4)(x + 5)(x – 4)

Ответы

Автор ответа: Аноним

1

Ответ:

${x}^{3} + 5 {x}^{2} - 16x - 80$

Объяснение:

Первая и третья скобки (х+4)(х-4)- формула сокращённого умножения (а+b)(a-b)=a^2-b^2

Собираем скобку:

$( {x}^{2} - 16)(x + 5)$

Далее перемножаем значения:

${x}^{3} + 5 {x}^{2} - 16x - 80$

kornienko131103: Спасибо огромное

Аноним: Рад стараться.

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