Предмет: Алгебра, автор: asyazhmurova

Помогите с алгеброй,умоляю

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Ответы

Автор ответа: ukrainec244
1

Ответ:

в 1 задании складём уравнение

-3х+4=25

тогда перенесём иксы влево а числа вправо

Мы получим:

-3х=21

х=-7

второе задание:

если f(x)=икс в квадрате иf(x)= 169

то по таблице квадратов

f(x)=13 или -13(-13 не задовольняет умову

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