Предмет: Алгебра, автор: lerakyzmenkova05

5x²+9x²=14 решение уравнения помогите пожалуйста

Ответы

Автор ответа: Matematiktm

1

Ответ:

Объяснение:

5x²+9x²=14;

(5+9)x²=14;

14x²=14

x²=1;

x=-1; x=1

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