Зная, что 3x-9y=1, найдите: (9y^2-6xy+x^2)*3

Зная, что 3x-9y=1, найдите:
(9y^2-6xy+x^2)*3
- Предмет:
  Алгебра
- Автор:
  sophiebright
- 5 лет назад

Ответы 4

Третья строка, первая скобка - опечатка. Исправьте, пожалуйста.
- Автор:
  angelblack
- 5 лет назад
- 0
Спасибо.
- Автор:
  doroteary77
- 5 лет назад
- 0
Решение в прикреплённом изображении
- Автор:
  edenfaulkner
- 5 лет назад
- 0
$3x-9y=1 \\ 3y-x= \frac{-1}{3} \\ 3(9y^2 - 6xy + x^2) = 3(3y-x)^2=3* ( \frac{-1}{3} )^2= \frac{1}{3}$ Ответ 1/3
- Автор:
  duffy90
- 5 лет назад
- 0
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Зная, что 3x-9y=1, найдите:
(9y^2-6xy+x^2)*3