1). При каких значениях переменной х функция у = – 3х в квадрате + 7х +1 принимает значение, равное – 5 ? - №11376077

1). При каких значениях переменной х функция у = – 3х в квадрате + 7х +1 принимает значение, равное – 5 ?
- Предмет:
  Математика
- Автор:
  ariannao3bs
- 6 лет назад

Ответы 1

-3х²+7х+1=-53х²-7х-6=0х₁,₂=7⁺₋√(49+42) = 7⁺₋11 6 6х₁=3х₂=-2/3
- Автор:
  muffinim1q
- 6 лет назад
- 0
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