Предмет: Алгебра, автор: veronikaalekseeva67

7x^2-9x=0

решите уравнение

Ответы

Автор ответа: Аноним

1

$\displaystyle7x^2-9x=0\\x(7x-9)=0\\x=0,7x-9=0\\\\ x_{1}=0,x_{2}=\frac{9}{7}$

veronikaalekseeva67: Там 9x

Аноним: было же изначально без "x", нет?

veronikaalekseeva67: Нет вроде

Аноним: ну, я уже исправила, смотри выше

veronikaalekseeva67: Спасибо

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