2х-у=5 х^+6у+2=0 система уравнения - №9688362

2х-у=5
х^+6у+2=0 система уравнения
- Предмет:
  Алгебра
- Автор:
  maría20
- 6 лет назад

Ответы 1

x²+6y=-22x-y=5/*6⇒12x-6y=30x²+12x=28x²+12x-28=0x1+x2=-12 U x1+x2=-28x1=-14⇒y=-28-5=-33x2=2⇒y=4-5=-1(-14;-33) U (2;-1)
- Автор:
  pierce
- 6 лет назад
- 0
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