Предмет: Математика, автор: LoliWelsa

а) 3x²-21x=0
б) x²-7x=0
​

Ответы

Автор ответа: 10090550
1

Ответ:

3х^2 - 21х=0

х(3х-21)=0

х=0 и 3х-21=0

3х=21

х=7

Автор ответа: asyl5001
1

Ответ:А) х1=0; х2=7

Б) х1=0; х2=7

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