решите систему 2x-y=2,xy=12

решите систему 2x-y=2,xy=12
- Предмет:
  Математика
- Автор:
  peters
- 6 лет назад

Ответы 4

совсем ничего непонятно! можно ли полностью расписать все!!?
- Автор:
  celestes4l1
- 6 лет назад
- 0
Выше правильно, я посчитал во 2 уравнении как за плюс:d
- Автор:
  colin495
- 6 лет назад
- 0
ху=123*4=12то есть 2*3-4=2
- Автор:
  escobar
- 6 лет назад
- 0
2x-y=2 xy=12 |x(-2)___________-y-2y=-24+2-3y= 22 | : (-3)y= -7,333, или семь целых одна третьяx*( - 7 1/3 ) = 12 | : ( - 7 1/3 )
- Автор:
  cristopherlindsey
- 6 лет назад
- 0
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решите систему 2x-y=2,xy=12

Ответы 4

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