Предмет: Алгебра, автор: felis01

Запишите многочлен x2-4x-5
в виде произведения двучленов.

Ответы

Автор ответа: serafimpankin67
1

Ответ:

Изи! Держи

Объяснение:

Решаем уравнение: x^2+4x-5=0

По теореме Виета:

Х1+Х2=-4

Х1*Х2=-5

Следовательно

Х1=-5, а Х2=+1

И теперь просто записываем:

x^2+4x-5=(х-1)(х+5)

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