Предмет: Математика, автор: DICI

Решите уравнение: 3x(2x-1)-6x(7+x)=90

Ответы

Автор ответа: sanya3578

3x(2x-1)-6x(7+x)=90

6х^2-3х-42х-6х^2=90

-45х=90

х=90:(-45)=-2

х=-2

Автор ответа: Makkk

6x*x-3x-42x-6x*x=90

-45x=90

-x=2

x=-2

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Listen to the recording (scroll down to find the script) and choose the correct option.
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